Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO2
Overview
The KEMET T491, designed specifically for today’s highly
automated surface mount processes and equipment, is
the leading choice for surface mount designs. The T491
combines KEMET’s proven solid tantalum technology,
acclaimed and respected throughout the world, with the
latest in materials, processes, and automation, resulting
in unsurpassed total performance and value. This product
meets or exceeds the requirements of EIA standard
535BAAC. The T491 is classified as moisture sensitivity
level (MSL) 1 under J STD 020, with unlimited floor life
time at ≤ 30°C/85% RH. The T491 standard terminations are
available in 100% matte tin and provide excellent wetting
characteristics and compatibility with today's surface mount
solder systems. Tin/lead (Sn/Pb) terminations are available
upon request for any part number. Gold-plated terminations
are also available for use with conductive epoxy attachment
processes. Standard packaging of these devices is Tape
& Reel in accordance with EIA 481. This system provides
perfect compatibility with all tape-fed placement units.
Benefits
• Meets or exceeds EIA Standard 535BAAC
• Tape & Reel standard packaging per EIA 481
• Symmetrical, compliant terminations
• Optional gold-plated terminations
• Laser-marked case
• 100% surge current test on C, D, E, U, V, and X sizes
• Halogen free epoxy
• Capacitance 0.1 – 1,000 µF
• Tolerance ±10%, ±20%
• Voltage 2.5 – 50 VDC
• Extended range values
• Low profile case sizes
• RoHS compliant and lead-free terminations
• Operating temperature range of −55°C to +125°C
Applications
Typical applications include decoupling and filtering in many end applications, such as DC/DC converters, portable
electronics, telecommunications, and control units.
Environmental Compliance
RoHS compliant (6/6) according to Directive 2002/95/EC when ordered with 100% Sn solder, Gold-plated or Non-magnetic
100% Sn solder.
• Halogen-free
• Epoxy compliant with UL94 V-0
• Molded Epoxy complies for outgassing testing under ASTM E 595.
Built Into Tomorrow
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
1
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
K-SIM
For a detailed analysis of specific part numbers, please visit ksim.kemet.com to access KEMET’s K-SIM software. KEMET
K-SIM is designed to simulate behavior of components with respect to frequency, ambient temperature, and DC bias levels.
Ordering Information
T
491
X
157
K
020
A
T
Capacitor
Class
Series
Case
Size
Capacitance
Code (pF)
Capacitance
Tolerance
Rated
Voltage
(VDC)
Failure Rate/
Design
Termination Finish
Packaging
(C-Spec)
T=
Tantalum
Industrial
A, B,
C, D,
E, M,
S, T,
U, V,
W, X
First two digits
represent
significant
figures. Third
digit specifies
number of
zeros.
K = ±10%
M = ±20%
2R5 = 2.5
003 = 3
004 = 4
006 = 6.3
010 = 10
016 = 16
020 = 20
025 = 25
035 = 35
050 = 50
A=
N/A
T = 100% Matte tin (Sn)-plated
H = Standard solder coated
(SnPb 5% Pb minimum)
G = Gold-plated
(A, B, C, D, X only)
N = Non-magnetic 100% tin (Sn)
M = Non-magnetic (SnPb)
Blank = 7" reel
7280 = 13" reel
Performance Characteristics
Item
Performance Characteristics
Operating Temperature
Rated Capacitance Range
Capacitance Tolerance
Rated Voltage Range
−55°C to 125°C
0.1 – 1,000 µF at 120 Hz/25°C
K tolerance (10%), M tolerance (20%)
2.5 – 50 V
DF (120 Hz)
Refer to Part Number Electrical Specification Table
ESR (100 kHz)
Refer to Part Number Electrical Specification Table
Leakage Current
≤ 0.01 CV (µA) at rated voltage after 5 minutes
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
2
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Qualification
Test
Condition
Characteristics
Δ C/C
Endurance
85°C at rated voltage, 2,000 hours
125°C at 2/3 rated voltage, 2,000 hours
Within initial limits
DCL
Within 1.25 x initial limit
ESR
Within initial limits
Δ C/C
Storage Life
125°C at 0 volts, 2,000 hours
Temperature Stability
MIL-STD-202, Method 107, Condition B, mounted, −55°C
to 125°C, 1,000 cycles
Extreme temperature exposure at a
succession of continuous steps at
+25°C, −55°C, +25°C, +85°C, +125°C,
+25°C.
Within initial limits
DCL
Within 1.25 x initial limit
ESR
Within initial limits
Mechanical Shock/
Vibration
Within ±5% of initial value
DF
Within initial limits
DCL
Within 1.25 x initial limit
ESR
Within initial limits
+25°C
−55°C
+85°C
+125°C
Δ C/C
IL*
±10%
±10%
±20%
DF
IL
IL
1.5 x IL
1.5 x IL
DCL
IL
N/A
10 x IL
12 x IL
Δ C/C
Surge Voltage
Within ±10% of initial value
DF
Δ C/C
Thermal Shock
Within ±10% of initial value
DF
85°C, 1.32 x rated voltage 1,000 cycles
(125°C, 1.2 x rated voltage).
MIL-STD-202, Method 213, Condition I, 100 G peak
MIL-STD-202, Method 204, Condition D, 10 Hz to
2,000 Hz, 20 G peak
Within ±5% of initial value
DF
Within initial limits
DCL
Within initial limits
ESR
Within initial limits
Δ C/C
Within ±10% of initial value
DF
Within initial limits
DCL
Within initial limits
*IL = Initial limit
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
3
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Electrical Characteristics
Capacitance vs. Frequency
ESR vs. Frequency
100
1,000
T491C336M025AT_IMP
T491C336M025AT
10
T491D476M025AT
T491X107M025AT_IMP
T491X107M025AT
T491C336M025AT_ESR
Capacitance (µF)
Impedance, ESR (Ohms)
T491D476M025AT_IMP
T491D476M025AT_ESR
T491X107M025AT_ESR
1
0.1
0.01
100
1,000
10,000
100,000
1,000,000
Frequency (Hz)
100
10
1
10,000,000
100
1,000
10,000
100,000
1,000,000
Frequency (Hz)
10,000,000
Dimensions – Millimeters (Inches)
Metric will govern
CATHODE (-) END VIEW
SIDE VIEW
ANODE (+) END VIEW
BOTTOM VIEW
A
B
W
B
H
X
T
S
G
S
Termination cutout
at KEMET's option,
either end
Case Size
KEMET
EIA
F
E
P
R
L
Component
L
W
H
F ±0.1
±(0.004)
S
B ±0.15
(Ref)±0.006
X
(Ref)
P
R
T
A
G
E
(Ref) (Ref) (Ref) (Min) (Ref) (Ref)
A
3.2 ±0.2
1.6 ±0.2
1.6 ±0.2
1.2
3216–18 (0.126
±0.008) (0.063 ±0.008) (0.063 ±0.008) (0.047)
0.80(0.032)
+0.2(0.008)/−0.3(0.011)
0.4
(0.016)
0.10 ±0.10
0.4
0.4
0.13
1.2
1.1
1.3
(0.004 ±0.004) (0.016) (0.016) (0.005) (0.047) (0.043) (0.051)
B
3.5 ±0.2
2.8 ±0.2
1.9 ±0.2
3528–21 (0.138
±0.008) (0.110 ±0.008) (0.075 ±0.008)
2.2
(0.087)
0.80(0.032)
+0.1(0.004)/−0.3(0.011)
0.4
(0.016)
0.10 ±0.10
0.5
1.0
0.13
1.9
1.8
2.2
(0.004 ±0.004) (0.020) (0.039) (0.005) (0.075) (0.071) (0.087)
C
6.0 ±0.3
3.2 ±0.3
2.5 ±0.3
6032–28 (0.236
±0.012) (0.126 ±0.012) (0.098 ±0.012)
2.2
(0.087)
1.30 (0.051)
±0.3 (0.011)
0.5
(0.020)
0.10 ±0.10
0.9
1.0
0.13
2.9
2.8
2.4
(0.004 ±0.004) (0.035) (0.039) (0.005) (0.114) (0.110) (0.094)
D
7.3 ±0.3
4.3 ±0.3
2.8 ±0.3
7343–31 (0.287
±0.012) (0.169 ±0.012) (0.110 ±0.012)
2.4
(0.094)
1.30 (0.051)
±0.3 (0.011)
0.5
(0.020)
0.10 ±0.10
0.9
1.0
0.13
3.6
3.5
3.5
(0.004 ±0.004) (0.035) (0.039) (0.005) (0.142) (0.138) (0.138)
X
7.3 ±0.3
4.3 ±0.3
4.0 ±0.3
7343–43 (0.287
±0.012) (0.169 ±0.012) (0.157 ±0.012)
2.4
(0.094)
1.30 (0.051)
±0.3 (0.011)
0.5
(0.020)
0.10 ±0.10
1.7
1.0
0.13
3.6
3.5
3.5
(0.004 ±0.004) (0.067) (0.039) (0.005) (0.142) (0.138) (0.138)
E
7.3 ±0.3
6.0 ±0.3
3.6 ±0.2
7360–38 (0.287
±0.012) (0.236 ±0.012) (0.142 ±0.008)
4.1
(0.161)
1.30 (0.051)
±0.3 (0.011)
0.5
(0.020)
0.10 ±0.10
(0.004 ±0.004)
N/A
N/A
0.13
3.6
3.5
3.5
(0.005) (0.142) (0.138) (0.138)
M
3.5 ±0.2
2.8 ±0.2
1.4 ±0.1
3528–15 (0.138
±0.008) (0.110 ±0.008) (0.055 ±0.004)
2.2
(.087)
0.8
(0.031)
N/A
0.05
(0.002)
N/A
N/A
0.13
1.9
1.8
(.005) (0.075) (.071)
S
3.2 ±0.2
1.6 ±0.2
1.1 ±0.1
1.2
3216–12 (0.126
±0.008) (0.063 ±0.008) (0.043 ±0.004) (0.047)
0.80(0.032)
+0.2(0.008)/−0.3(0.011)
N/A
0.05
(0.002)
N/A
N/A
0.13
1.2
1.1
1.3
(0.005) (0.047) (0.043) (0.051)
T
3.5 ±0.2
2.8 ±0.2
1.1 ±0.1
2.2
3528–12 (0.138
±0.008) (0.110 ±0.008) (0.043 ±0.004) (0.087)
0.80(0.032)
+0.1(0.004)/−0.3(0.011)
N/A
0.05
(0.002)
N/A
N/A
0.13
1.9
1.8
2.2
(0.005) (0.075) (0.071) (0.087)
U
6.0 ±0.3
3.2 ±0.2
1.4 ±0.1
2.2
6032–15 (0.236
±0.012) (0.110 ±0.008) (0.055 ±0.004) (0.087)
1.30 (0.051)
±0.3 (0.011)
N/A
0.05
(0.002)
N/A
N/A
0.13
2.9
2.8
2.4
(0.005) (0.114) (0.110) (0.094)
V
7.3 ±0.3
4.3 ±0.3
1.8 ±0.2
2.4
7343–20 (0.287
±0.012) (0.169 ±0.012) (0.071 ± 0.008) (0.094)
1.30 (0.051)
±0.3 (0.011)
N/A
0.05
(0.002)
N/A
N/A
0.13
3.6
3.5
3.5
(0.005) (0.142) (0.138) (0.138)
W
7.3 ±0.3
4.3 ±0.3
1.4 ±0.1
2.4
7343–15 (0.287
±0.012) (0.169 ±0.012) (0.055 ±0.004) (0.094)
1.30 (0.051)
±0.3 (0.011)
N/A
0.05
(0.002)
N/A
N/A
0.13
3.6
3.5
3.5
(0.005) (0.142) (.0138) (0.138)
2.2
(.087)
Notes: (Ref) – Dimensions provided for reference only. For low profile cases, no dimensions are provided for B, P or R because these cases do not have a bevel or
a notch.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
4
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Table 1 – Ratings & Part Number Reference
Rated Rated
Voltage Cap
Case
Code/
Case Size
KEMET Part
Number
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
2.5
2.5
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
100
220
33
3.3
4.7
6.8
6.8
10
10
10
15
15
15
15
22
22
22
22
22
33
33
33
33
33
47
47
47
47
47
68
68
68
68
68
100
100
100
100
100
100
150
150
150
150
150
220
T/3528-12
D/7343-31
A/3216-18
A/3216-18
A/3216-18
A/3216-18
S/3216-12
B/3528-21
A/3216-18
S/3216-12
B/3528-21
A/3216-18
T/3528-12
S/3216-12
C/6032-28
B/3528-21
A/3216-18
T/3528-12
S/3216-12
C/6032-28
U/6032-15
B/3528-21
A/3216-18
T/3528-12
C/6032-28
U/6032-15
B/3528-21
A/3216-18
T/3528-12
D/7343-31
C/6032-28
U/6032-15
B/3528-21
A/3216-18
D/7343-31
C/6032-28
U/6032-15
B/3528-21
A/3216-18
T/3528-12
D/7343-31
U/6032-15
V/7343-20
C/6032-28
B/3528-21
V/7343-20
T491T107(1)2R5A(2)
T491D227(1)2R5A(2)
T491A336(1)003A(2)
T491A335(1)004A(2)
T491A475(1)004A(2)
T491A685(1)004A(2)
T491S685(1)004A(2)
T491B106(1)004A(2)
T491A106(1)004A(2)
T491S106(1)004A(2)
T491B156(1)004A(2)
T491A156(1)004A(2)
T491T156(1)004A(2)
T491S156(1)004A(2)
T491C226(1)004A(2)
T491B226(1)004A(2)
T491A226(1)004A(2)
T491T226(1)004A(2)
T491S226(1)004A(2)
T491C336(1)004A(2)
T491U336(1)004A(2)
T491B336(1)004A(2)
T491A336(1)004A(2)
T491T336(1)004A(2)
T491C476(1)004A(2)
T491U476(1)004A(2)
T491B476(1)004A(2)
T491A476(1)004A(2)
T491T476(M)004A(2)
T491D686(1)004A(2)
T491C686(1)004A(2)
T491U686(1)004A(2)
T491B686(1)004A(2)
T491A686(1)004A(2)
T491D107(1)004A(2)
T491C107(1)004A(2)
T491U107(1)004A(2)
T491B107(1)004A(2)
T491A107(M)004A(2)
T491T107(M)004A(2)
T491D157(1)004A(2)
T491U157(1)004A(2)
T491V157(1)004A(2)
T491C157(1)004A(2)
T491B157(1)004A(2)
T491V227(1)004A(2)
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part
Number
DC
Leakage
DF
ESR
µA at +25°C
Maximum/
5 Minutes
2.5
5.5
1.0
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.6
0.6
0.9
0.9
0.9
0.9
0.9
1.3
1.3
1.3
1.3
1.3
1.9
1.9
1.9
1.9
1.9
2.7
2.7
2.7
2.7
2.7
4.0
4.0
4.0
4.0
4.0
4.0
6.0
6.0
6.0
6.0
6.0
8.8
µA at +25°C
Maximum/
5 Minutes
% at +25°C
120 Hz
Maximum
24.0
8.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
10.0
6.0
6.0
6.0
6.0
10.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
6.0
10.0
12.0
6.0
6.0
6.0
6.0
30.0
8.0
8.0
10.0
8.0
30.0
30.0
8.0
8.0
8.0
8.0
12.0
8.0
% at +25°C
120 Hz
Maximum
Ω at +25°C
100 kHz
Maximum
3.9
0.3
4.0
8.0
8.0
6.0
15.0
3.5
4.5
15.0
3.5
4.0
5.0
15.0
1.8
3.0
3.5
5.0
10.0
1.8
1.8
2.5
3.0
5.0
1.6
1.8
2.0
2.5
6.0
0.8
1.5
1.8
1.8
4.0
0.8
1.2
1.8
0.9
4.0
5.0
0.8
1.3
0.7
1.2
2.0
0.7
Ω at +25°C
100 kHz
Maximum
DC
Leakage
DF
ESR
Maximum Allowable
Ripple Current (rms)
mA at
+25°C
100 kHz
134
707
137
97
97
112
63
156
129
63
156
137
118
63
247
168
137
118
77
247
224
184
137
118
262
224
206
173
108
433
271
224
217
137
433
303
224
307
137
118
433
263
423
303
206
423
mA at
+25°C
100 kHz
mA at
+85°C
100 kHz
121
636
123
87
87
101
57
140
116
57
140
123
106
57
222
151
123
106
69
222
202
166
123
106
236
202
185
156
97
390
244
202
195
123
390
273
202
276
123
106
390
237
381
273
185
381
mA at
+85°C
100 kHz
mA at
+125°C
100 kHz
54
283
55
39
39
45
25
62
52
25
62
55
47
25
99
67
55
47
31
99
90
74
55
47
105
90
82
69
43
173
108
90
87
55
173
121
90
123
55
47
173
105
169
121
82
169
mA at
+125°C
100 kHz
Maximum Allowable
Ripple Current (rms)
Maximum
Operating
Temp
MSL
°C
Reflow Temp
≤ 260 °C
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
°C
Reflow Temp
≤ 260 °C
Maximum
Operating
Temp
MSL
(1) To complete KEMET part number, insert M for ±20% or K for ±10%. Designates Capacitance Tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn)-plated, G = Gold-plated, H = Standard solder coated (SnPb 5% Pb minimum), N =
Non-magnetic 100% Tin (Sn), M = Non-magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional details.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
5
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Table 1 – Ratings & Part Number Reference cont.
Rated Rated
Voltage Cap
Case
Code/
Case Size
KEMET Part
Number
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
220
220
220
220
330
330
330
330
470
470
680
680
1000
1000
2.2
3.3
4.7
4.7
6.8
6.8
6.8
10
10
10
10
15
15
15
15
15
22
22
22
22
22
33
33
33
33
33
47
47
47
47
47
47
B/3528-21
C/6032-28
D/7343-31
W/7343-15
D/7343-31
V/7343-20
C/6032-28
X/7343-43
X/7343-43
D/7343-31
X/7343-43
D/7343-31
X/7343-43
E/7360-38
A/3216-18
A/3216-18
A/3216-18
S/3216-12
B/3528-21
A/3216-18
S/3216-12
B/3528-21
A/3216-18
T/3528-12
S/3216-12
C/6032-28
B/3528-21
A/3216-18
T/3528-12
S/3216-12
C/6032-28
U/6032-15
B/3528-21
A/3216-18
T/3528-12
C/6032-28
U/6032-15
B/3528-21
A/3216-18
T/3528-12
D/7343-31
C/6032-28
U/6032-15
V/7343-20
B/3528-21
A/3216-18
T491B227(1)004A(2)
T491C227(1)004A(2)
T491D227(1)004A(2)
T491W227(1)004AT
T491D337(1)004A(2)
T491V337(1)004A(2)
T491C337(1)004A(2)
T491X337(1)004A(2)
T491X477(1)004A(2)
T491D477(1)004A(2)
T491X687(1)004A(2)
T491D687(1)004A(2)
T491X108(1)004A(2)
T491E108(M)004A(2)
T491A225(1)006A(2)
T491A335(1)006A(2)
T491A475(1)006A(2)
T491S475(1)006A(2)
T491B685(1)006A(2)
T491A685(1)006A(2)
T491S685(1)006A(2)
T491B106(1)006A(2)
T491A106(1)006A(2)
T491T106(1)006A(2)
T491S106(1)006A(2)
T491C156(1)006A(2)
T491B156(1)006A(2)
T491A156(1)006A(2)
T491T156(1)006A(2)
T491S156(1)006A(2)
T491C226(1)006A(2)
T491U226(1)006A(2)
T491B226(1)006A(2)
T491A226(1)006A(2)
T491T226(1)006A(2)
T491C336(1)006A(2)
T491U336(1)006A(2)
T491B336(1)006A(2)
T491A336(1)006A(2)
T491T336(1)006A(2)
T491D476(1)006A(2)
T491C476(1)006A(2)
T491U476(1)006A(2)
T491V476(1)006A(2)
T491B476(1)006A(2)
T491A476(1)006A(2)
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part
Number
DC
Leakage
DF
ESR
µA at +25°C
Maximum/
5 Minutes
8.8
8.8
8.8
8.8
13.2
13.2
13.2
13.2
18.8
18.8
27.2
27.2
40.0
40.0
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.6
0.6
0.9
0.9
0.9
0.9
0.9
1.4
1.4
1.4
1.4
1.4
2.1
2.1
2.1
2.1
2.1
3.0
3.0
3.0
3.0
3.0
3.0
µA at +25°C
Maximum/
5 Minutes
% at +25°C
120 Hz
Maximum
18.0
15.0
8.0
8.0
8.0
12.0
10.0
8.0
8.0
8.0
12.0
12.0
12.0
15.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
10.0
6.0
6.0
6.0
6.0
15.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
6.0
12.0
12.0
6.0
6.0
6.0
6.0
6.0
12.0
% at +25°C
120 Hz
Maximum
Ω at +25°C
100 kHz
Maximum
0.5
1.2
0.8
0.8
0.7
0.7
0.9
0.8
0.5
0.8
0.5
0.5
0.5
0.2
8.0
7.0
5.5
15.0
3.5
6.0
15.0
3.5
4.0
5.0
15.0
1.8
3.0
3.5
3.5
10.0
1.8
1.8
2.0
3.0
5.0
1.6
1.8
2.2
2.5
6.0
0.8
1.5
1.8
0.7
2.0
3.5
Ω at +25°C
100 kHz
Maximum
DC
Leakage
DF
ESR
Maximum Allowable
Ripple Current (rms)
mA at
+25°C
100 kHz
412
303
433
474
463
423
350
454
574
433
574
548
574
1000
97
97
112
63
156
112
63
156
137
118
63
247
168
146
141
77
247
224
206
158
118
247
224
168
173
108
433
262
224
423
206
146
mA at
+25°C
100 kHz
mA at
+85°C
100 kHz
371
273
390
427
417
381
315
409
517
390
517
493
517
900
87
87
101
57
140
101
57
140
123
106
57
222
151
131
127
69
222
202
185
142
106
222
202
151
156
97
390
236
202
381
185
131
mA at
+85°C
100 kHz
mA at
+125°C
100 kHz
165
121
173
190
185
169
140
182
230
173
230
219
230
400
39
39
45
25
62
45
25
62
55
47
25
99
67
58
56
31
99
90
82
63
47
99
90
67
69
43
173
105
90
169
82
58
mA at
+125°C
100 kHz
Maximum Allowable
Ripple Current (rms)
Maximum
Operating
Temp
MSL
°C
Reflow Temp
≤ 260 °C
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
°C
Reflow Temp
≤ 260 °C
Maximum
Operating
Temp
MSL
(1) To complete KEMET part number, insert M for ±20% or K for ±10%. Designates Capacitance Tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn)-plated, G = Gold-plated, H = Standard solder coated (SnPb 5% Pb minimum), N =
Non-magnetic 100% Tin (Sn), M = Non-magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional details.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
6
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Table 1 – Ratings & Part Number Reference cont.
Rated Rated
Voltage Cap
Case
Code/
Case Size
KEMET Part
Number
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
10
10
10
10
10
10
10
10
10
47
68
68
68
68
68
68
100
100
100
100
100
100
150
150
150
150
150
150
150
220
220
220
220
220
330
330
330
330
330
470
470
470
470
680
680
1000
1
1.5
2.2
2.2
3.3
3.3
4.7
4.7
4.7
T/3528-12
D/7343-31
C/6032-28
U/6032-15
V/7343-20
B/3528-21
A/3216-18
D/7343-31
V/7343-20
C/6032-28
U/6032-15
B/3528-21
M/3528-15
B/3528-21
D/7343-31
C/6032-28
V/7343-20
U/6032-15
W/7343-15
X/7343-43
X/7343-43
D/7343-31
C/6032-28
V/7343-20
W/7343-15
C/6032-28
V/7343-20
X/7343-43
D/7343-31
E/7360-38
X/7343-43
D/7343-31
V/7343-20
E/7360-38
X/7343-43
E/7360-38
X/7343-43
A/3216-18
A/3216-18
B/3528-21
A/3216-18
A/3216-18
S/3216-12
B/3528-21
A/3216-18
S/3216-12
T491T476(1)006A(2)
T491D686(1)006A(2)
T491C686(1)006A(2)
T491U686(1)006A(2)
T491V686(1)006A(2)
T491B686(1)006A(2)
T491A686(1)006A(2)
T491D107(1)006A(2)
T491V107(1)006A(2)
T491C107(1)006A(2)
T491U107(1)006A(2)
T491B107(1)006A(2)
T491M107(1)006A(2)
T491B157(1)006A(2)
T491D157(1)006A(2)
T491C157(1)006A(2)
T491V157(1)006A(2)
T491U157(1)006A(2)
T491W157(1)006AT
T491X157(1)006A(2)
T491X227(1)006A(2)
T491D227(1)006A(2)
T491C227(1)006A(2)
T491V227(1)006A(2)
T491W227(1)006AT
T491C337(1)006A(2)
T491V337(1)006A(2)
T491X337(1)006A(2)
T491D337(1)006A(2)
T491E337(1)006A(2)
T491X477(1)006A(2)
T491D477(1)006A(2)
T491V477(1)006A(2)
T491E477(1)006A(2)
T491X687(1)006A(2)
T491E687(M)006A(2)
T491X108(1)006A(2)
T491A105(1)010A(2)
T491A155(1)010A(2)
T491B225(1)010A(2)
T491A225(1)010A(2)
T491A335(1)010A(2)
T491S335(1)010A(2)
T491B475(1)010A(2)
T491A475(1)010A(2)
T491S475(1)010A(2)
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part
Number
DC
Leakage
DF
ESR
µA at +25°C
Maximum/
5 Minutes
3.0
4.3
4.3
4.3
4.3
4.3
4.3
6.3
6.3
6.3
6.3
6.3
6.3
9.5
9.5
9.5
9.5
9.5
9.5
9.5
13.9
13.9
13.9
13.9
13.9
20.8
20.8
20.8
20.8
20.8
29.6
29.6
29.6
29.6
42.8
42.8
63.0
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
µA at +25°C
Maximum/
5 Minutes
% at +25°C
120 Hz
Maximum
10.0
6.0
6.0
10.0
6.0
8.0
30.0
8.0
8.0
8.0
10.0
12.0
20.0
15.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
10.0
8.0
8.0
12.0
8.0
8.0
8.0
8.0
8.0
12.0
15.0
10.0
15.0
12.0
15.0
4.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
% at +25°C
120 Hz
Maximum
Ω at +25°C
100 kHz
Maximum
2.0
0.8
1.2
1.8
0.7
0.9
4.0
0.8
0.7
0.9
1.8
2.0
3.0
3.0
0.7
1.2
0.7
0.6
0.8
0.7
0.7
0.7
1.0
0.7
0.8
1.2
0.7
0.4
0.4
0.5
0.4
0.4
0.7
0.4
0.6
0.5
0.6
10.0
8.0
3.5
7.0
5.5
15.0
3.5
4.0
15.0
Ω at +25°C
100 kHz
Maximum
DC
Leakage
DF
ESR
Maximum Allowable
Ripple Current (rms)
mA at
+25°C
100 kHz
187
433
303
224
423
307
137
433
423
350
224
206
200
168
463
303
423
387
474
486
486
463
332
423
474
303
423
642
612
632
642
612
423
707
524
632
524
87
97
156
97
117
63
156
137
63
mA at
+25°C
100 kHz
mA at
+85°C
100 kHz
168
390
273
202
381
276
123
390
381
315
202
185
180
151
417
273
381
348
427
437
437
417
299
381
427
273
381
578
551
569
578
551
381
636
472
569
472
78
87
140
87
105
57
140
123
57
mA at
+85°C
100 kHz
mA at
+125°C
100 kHz
75
173
121
90
169
123
55
173
169
140
90
82
80
67
185
121
169
155
190
194
194
185
133
169
190
121
169
257
245
253
257
245
169
283
210
253
210
35
39
62
39
47
25
62
55
25
mA at
+125°C
100 kHz
Maximum Allowable
Ripple Current (rms)
Maximum
Operating
Temp
MSL
°C
Reflow Temp
≤ 260 °C
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
°C
Reflow Temp
≤ 260 °C
Maximum
Operating
Temp
MSL
(1) To complete KEMET part number, insert M for ±20% or K for ±10%. Designates Capacitance Tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn)-plated, G = Gold-plated, H = Standard solder coated (SnPb 5% Pb minimum), N =
Non-magnetic 100% Tin (Sn), M = Non-magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional details.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
7
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Table 1 – Ratings & Part Number Reference cont.
Rated Rated
Voltage Cap
Case
Code/
Case Size
KEMET Part
Number
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
6.8
6.8
6.8
6.8
10
10
10
10
10
15
15
15
15
15
22
22
22
22
22
22
33
33
33
33
33
33
33
47
47
47
47
47
68
68
68
68
68
68
100
100
100
100
100
100
150
150
B/3528-21
A/3216-18
T/3528-12
S/3216-12
C/6032-28
B/3528-21
A/3216-18
T/3528-12
S/3216-12
C/6032-28
U/6032-15
B/3528-21
A/3216-18
T/3528-12
D/7343-31
C/6032-28
U/6032-15
B/3528-21
A/3216-18
T/3528-12
D/7343-31
V/7343-20
C/6032-28
U/6032-15
B/3528-21
T/3528-12
A/3216-18
D/7343-31
V/7343-20
C/6032-28
U/6032-15
B/3528-21
D/7343-31
V/7343-20
C/6032-28
W/7343-15
U/6032-15
B/3528-21
B/3528-21
D/7343-31
U/6032-15
W/7343-15
C/6032-28
V/7343-20
X/7343-43
D/7343-31
T491B685(1)010A(2)
T491A685(1)010A(2)
T491T685(1)010A(2)
T491S685(1)010A(2)
T491C106(1)010A(2)
T491B106(1)010A(2)
T491A106(1)010A(2)
T491T106(1)010A(2)
T491S106(1)010A(2)
T491C156(1)010A(2)
T491U156(1)010A(2)
T491B156(1)010A(2)
T491A156(1)010A(2)
T491T156(1)010A(2)
T491D226(1)010A(2)
T491C226(1)010A(2)
T491U226(1)010A(2)
T491B226(1)010A(2)
T491A226(1)010A(2)
T491T226(1)010A(2)
T491D336(1)010A(2)
T491V336(1)010A(2)
T491C336(1)010A(2)
T491U336(1)010A(2)
T491B336(1)010A(2)
T491T336(1)010A(2)
T491A336(1)010A(2)
T491D476(1)010A(2)
T491V476(1)010A(2)
T491C476(1)010A(2)
T491U476(1)010A(2)
T491B476(1)010A(2)
T491D686(1)010A(2)
T491V686(1)010A(2)
T491C686(1)010A(2)
T491W686(1)010AT
T491U686(1)010A(2)
T491B686(1)010A(2)
T491B107(1)010A(2)
T491D107(1)010A(2)
T491U107(1)010A(2)
T491W107(1)010AT
T491C107(1)010A(2)
T491V107(1)010A(2)
T491X157(1)010A(2)
T491D157(1)010A(2)
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part
Number
DC
Leakage
DF
ESR
µA at +25°C
Maximum/
5 Minutes
0.7
0.7
0.7
0.7
1.0
1.0
1.0
1.0
1.0
1.5
1.5
1.5
1.5
1.5
2.2
2.2
2.2
2.2
2.2
2.2
3.3
3.3
3.3
3.3
3.3
3.3
3.3
4.7
4.7
4.7
4.7
4.7
6.8
6.8
6.8
6.8
6.8
6.8
10.0
10.0
10.0
10.0
10.0
10.0
15.0
15.0
µA at +25°C
Maximum/
5 Minutes
% at +25°C
120 Hz
Maximum
6.0
6.0
6.0
10.0
6.0
6.0
6.0
6.0
10.0
6.0
6.0
6.0
8.0
6.0
6.0
6.0
6.0
6.0
8.0
12.0
6.0
6.0
6.0
6.0
6.0
24.0
15.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
6.0
6.0
10.0
8.0
15.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
% at +25°C
120 Hz
Maximum
Ω at +25°C
100 kHz
Maximum
3.5
4.0
5.0
15.0
1.8
3.0
3.8
3.0
15.0
1.8
1.8
2.0
6.0
2.8
0.8
1.6
1.8
2.0
3.2
8.0
0.8
0.7
1.5
1.8
1.8
5.0
6.0
0.8
0.7
1.2
1.4
1.0
0.8
0.7
1.0
1.2
1.8
1.0
1.2
0.7
0.7
0.8
1.0
0.7
0.7
0.7
Ω at +25°C
100 kHz
Maximum
DC
Leakage
DF
ESR
Maximum Allowable
Ripple Current (rms)
mA at
+25°C
100 kHz
156
137
118
63
247
156
137
153
63
247
224
206
112
158
433
247
224
206
112
94
433
423
271
224
217
118
112
433
423
303
254
292
433
423
332
387
224
292
266
463
359
474
332
423
486
463
mA at
+25°C
100 kHz
mA at
+85°C
100 kHz
140
123
106
57
222
140
123
138
57
222
202
185
101
142
390
222
202
185
101
85
390
381
244
202
195
106
101
390
381
273
229
263
390
381
299
348
202
263
239
417
323
427
299
381
437
417
mA at
+85°C
100 kHz
mA at
+125°C
100 kHz
62
55
47
25
99
62
55
61
25
99
90
82
45
63
173
99
90
82
45
38
173
169
108
90
87
47
45
173
169
121
102
117
173
169
133
155
90
117
106
185
144
190
133
169
194
185
mA at
+125°C
100 kHz
Maximum Allowable
Ripple Current (rms)
Maximum
Operating
Temp
MSL
°C
Reflow Temp
≤ 260 °C
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
°C
Reflow Temp
≤ 260 °C
Maximum
Operating
Temp
MSL
(1) To complete KEMET part number, insert M for ±20% or K for ±10%. Designates Capacitance Tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn)-plated, G = Gold-plated, H = Standard solder coated (SnPb 5% Pb minimum), N =
Non-magnetic 100% Tin (Sn), M = Non-magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional details.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
8
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Table 1 – Ratings & Part Number Reference cont.
Rated Rated
Voltage Cap
Case
Code/
Case Size
KEMET Part
Number
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
10
10
10
10
10
10
10
10
10
10
10
10
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
150
150
220
220
220
220
330
330
330
330
470
470
1
1.5
2.2
2.2
2.2
3.3
3.3
4.7
4.7
4.7
4.7
6.8
6.8
6.8
10
10
10
10
10
15
15
15
15
15
22
22
22
22
33
33
33
33
47
47
C/6032-28
V/7343-20
C/6032-28
X/7343-43
D/7343-31
V/7343-20
D/7343-31
V/7343-20
X/7343-43
E/7360-38
X/7343-43
E/7360-38
A/3216-18
A/3216-18
A/3216-18
S/3216-12
B/3528-21
B/3528-21
A/3216-18
C/6032-28
B/3528-21
A/3216-18
T/3528-12
C/6032-28
B/3528-21
A/3216-18
C/6032-28
U/6032-15
B/3528-21
A/3216-18
T/3528-12
D/7343-31
C/6032-28
U/6032-15
B/3528-21
A/3216-18
D/7343-31
C/6032-28
U/6032-15
B/3528-21
D/7343-31
C/6032-28
U/6032-15
B/3528-21
D/7343-31
V/7343-20
T491C157(1)010A(2)
T491V157(1)010A(2)
T491C227(1)010A(2)
T491X227(1)010A(2)
T491D227(1)010A(2)
T491V227(1)010A(2)
T491D337(1)010A(2)
T491V337(1)010A(2)
T491X337(1)010A(2)
T491E337(1)010A(2)
T491X477(1)010A(2)
T491E477(1)010A(2)
T491A105(1)016A(2)
T491A155(1)016A(2)
T491A225(1)016A(2)
T491S225(1)016A(2)
T491B225(1)016A(2)
T491B335(1)016A(2)
T491A335(1)016A(2)
T491C475(1)016A(2)
T491B475(1)016A(2)
T491A475(1)016A(2)
T491T475(1)016A(2)
T491C685(1)016A(2)
T491B685(1)016A(2)
T491A685(1)016A(2)
T491C106(1)016A(2)
T491U106(1)016A(2)
T491B106(1)016A(2)
T491A106(1)016A(2)
T491T106(1)016A(2)
T491D156(1)016A(2)
T491C156(1)016A(2)
T491U156(1)016A(2)
T491B156(1)016A(2)
T491A156(1)016A(2)
T491D226(1)016A(2)
T491C226(1)016A(2)
T491U226(1)016A(2)
T491B226(1)016A(2)
T491D336(1)016A(2)
T491C336(1)016A(2)
T491U336(1)016A(2)
T491B336(1)016A(2)
T491D476(1)016A(2)
T491V476(1)016A(2)
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part
Number
DC
Leakage
DF
ESR
µA at +25°C
Maximum/
5 Minutes
15.0
15.0
22.0
22.0
22.0
22.0
33.0
33.0
33.0
33.0
47
47.0
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.8
0.8
0.8
0.8
1.1
1.1
1.1
1.6
1.6
1.6
1.6
1.6
2.4
2.4
2.4
2.4
2.4
3.5
3.5
3.5
3.5
5.3
5.3
5.3
5.3
7.5
7.5
µA at +25°C
Maximum/
5 Minutes
% at +25°C
120 Hz
Maximum
10.0
8.0
10.0
8.0
8.0
8.0
10.0
12.0
10.0
10.0
10
12.0
4.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
10.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
% at +25°C
120 Hz
Maximum
Ω at +25°C
100 kHz
Maximum
0.9
0.7
0.9
0.5
0.5
0.7
0.5
0.7
0.5
0.5
0.2
0.5
10.0
8.0
6.0
15.0
3.5
3.5
5.0
2.4
3.5
4.0
5.0
1.9
2.5
3.5
1.8
1.8
2.0
3.0
8.0
1.0
1.6
1.8
2.0
3.5
0.8
1.5
3.0
2.2
0.8
1.2
1.0
2.0
0.8
0.7
Ω at +25°C
100 kHz
Maximum
DC
Leakage
DF
ESR
Maximum Allowable
Ripple Current (rms)
mA at
+25°C
100 kHz
350
423
350
574
548
423
548
423
574
632
908
632
87
97
112
63
156
156
122
214
156
137
118
241
184
146
247
224
206
158
94
387
247
224
192
146
433
262
173
197
433
303
300
206
433
423
mA at
+25°C
100 kHz
mA at
+85°C
100 kHz
315
381
315
517
493
381
493
381
517
569
817.2
569
78
87
101
57
140
140
110
193
140
123
106
217
166
131
222
202
185
142
85
348
222
202
173
131
390
236
156
177
390
273
270
185
390
381
mA at
+85°C
100 kHz
mA at
+125°C
100 kHz
140
169
140
230
219
169
219
169
230
253
363.2
253
35
39
45
25
62
62
49
86
62
55
47
96
74
58
99
90
82
63
38
155
99
90
77
58
173
105
69
79
173
121
120
82
173
169
mA at
+125°C
100 kHz
Maximum Allowable
Ripple Current (rms)
Maximum
Operating
Temp
MSL
°C
Reflow Temp
≤ 260 °C
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
°C
Reflow Temp
≤ 260 °C
Maximum
Operating
Temp
MSL
(1) To complete KEMET part number, insert M for ±20% or K for ±10%. Designates Capacitance Tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn)-plated, G = Gold-plated, H = Standard solder coated (SnPb 5% Pb minimum), N =
Non-magnetic 100% Tin (Sn), M = Non-magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional details.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
9
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Table 1 – Ratings & Part Number Reference cont.
Rated Rated
Voltage Cap
Case
Code/
Case Size
KEMET Part
Number
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
16
16
16
16
16
16
16
16
16
16
16
16
16
16
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
47
68
68
68
68
100
100
100
100
150
150
220
220
220
0.68
0.47
1
1
1.5
1.5
2.2
2.2
3.3
3.3
3.3
4.7
4.7
4.7
6.8
6.8
6.8
6.8
10
10
10
10
10
15
15
15
22
22
22
22
33
33
C/6032-28
V/7343-20
C/6032-28
W/7343-15
D/7343-31
X/7343-43
C/6032-28
V/7343-20
D/7343-31
X/7343-43
D/7343-31
D/7343-31
X/7343-43
E/7360-38
A/3216-18
A/3216-18
A/3216-18
S/3216-12
A/3216-18
S/3216-12
B/3528-21
A/3216-18
B/3528-21
A/3216-18
T/3528-12
C/6032-28
B/3528-21
A/3216-18
C/6032-28
U/6032-15
B/3528-21
A/3216-18
D/7343-31
C/6032-28
U/6032-15
B/3528-21
A/3216-18
D/7343-31
B/3528-21
C/6032-28
D/7343-31
V/7343-20
C/6032-28
B/3528-21
D/7343-31
C/6032-28
T491C476(1)016A(2)
T491V686(1)016A(2)
T491C686(1)016A(2)
T491W686(1)016AT
T491D686(1)016A(2)
T491X107(1)016A(2)
T491C107(1)016A(2)
T491V107(1)016A(2)
T491D107(1)016A(2)
T491X157(1)016A(2)
T491D157(1)016A(2)
T491D227(1)016A(2)
T491X227(1)016A(2)
T491E227(1)016A(2)
T491A684(1)020A(2)
T491A474(1)020A(2)
T491A105(1)020A(2)
T491S105(1)020A(2)
T491A155(1)020A(2)
T491S155(1)020A(2)
T491B225(1)020A(2)
T491A225(1)020A(2)
T491B335(1)020A(2)
T491A335(1)020A(2)
T491T335(1)020A(2)
T491C475(1)020A(2)
T491B475(1)020A(2)
T491A475(1)020A(2)
T491C685(1)020A(2)
T491U685(1)020A(2)
T491B685(1)020A(2)
T491A685(1)020A(2)
T491D106(1)020A(2)
T491C106(1)020A(2)
T491U106(1)020A(2)
T491B106(1)020A(2)
T491A106(1)020A(2)
T491D156(1)020A(2)
T491B156(1)020A(2)
T491C156(1)020A(2)
T491D226(1)020A(2)
T491V226(1)020A(2)
T491C226(1)020A(2)
T491B226(1)020A(2)
T491D336(1)020A(2)
T491C336(1)020A(2)
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part
Number
DC
Leakage
DF
ESR
µA at +25°C
Maximum/
5 Minutes
7.5
10.9
10.9
10.9
10.9
16.0
16.0
16.0
16.0
24.0
24.0
35.2
35.2
35.2
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.7
0.7
0.7
0.9
0.9
0.9
1.4
1.4
1.4
1.4
2.0
2.0
2.0
2.0
2.0
3.0
3.0
3.0
4.4
4.4
4.4
4.4
6.6
6.6
µA at +25°C
Maximum/
5 Minutes
% at +25°C
120 Hz
Maximum
6.0
6.0
6.0
6.0
6.0
8.0
10.0
8.0
8.0
8.0
10.0
15.0
10.0
7.2
4.0
4.0
4.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
6.0
6.0
10.0
6.0
6.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
% at +25°C
120 Hz
Maximum
Ω at +25°C
100 kHz
Maximum
1.0
0.7
1.0
0.8
0.7
0.7
1.0
0.7
0.7
0.5
0.7
0.9
0.5
0.9
12.0
14.0
9.0
18.0
6.5
15.0
3.5
6.0
3.0
4.0
5.0
2.4
3.0
4.0
1.9
1.9
2.0
6.0
1.0
1.6
1.8
2.0
5.0
1.0
2.0
1.7
0.8
0.7
1.2
4.0
0.8
1.2
Ω at +25°C
100 kHz
Maximum
DC
Leakage
DF
ESR
Maximum Allowable
Ripple Current (rms)
mA at
+25°C
100 kHz
332
423
303
474
463
486
332
423
463
574
463
408
574
471
79
73
91
58
107
63
156
104
168
129
118
214
168
137
241
218
206
112
387
247
224
201
122
387
206
254
433
423
303
146
433
303
mA at
+25°C
100 kHz
mA at
+85°C
100 kHz
299
381
273
427
417
437
299
381
417
517
417
367
517
424
71
66
82
52
96
57
140
94
151
116
106
193
151
123
217
196
185
101
349
222
202
181
110
348
185
229
390
381
273
131
390
273
mA at
+85°C
100 kHz
mA at
+125°C
100 kHz
133
169
121
190
185
194
133
169
185
230
185
163
230
188
32
29
36
23
43
25
62
42
67
52
47
86
67
55
96
87
82
45
155
99
90
80
49
155
82
102
173
169
121
58
173
121
mA at
+125°C
100 kHz
Maximum Allowable
Ripple Current (rms)
Maximum
Operating
Temp
MSL
°C
Reflow Temp
≤ 260 °C
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
°C
Reflow Temp
≤ 260 °C
Maximum
Operating
Temp
MSL
(1) To complete KEMET part number, insert M for ±20% or K for ±10%. Designates Capacitance Tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn)-plated, G = Gold-plated, H = Standard solder coated (SnPb 5% Pb minimum), N =
Non-magnetic 100% Tin (Sn), M = Non-magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional details.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
10
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Table 1 – Ratings & Part Number Reference cont.
Rated Rated
Voltage Cap
Case
Code/
Case Size
KEMET Part
Number
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
20
20
20
20
20
20
20
20
20
20
20
20
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
33
33
47
47
47
68
68
68
100
100
100
150
0.33
0.47
0.68
1
1
1
1.5
1.5
2.2
2.2
2.2
3.3
3.3
3.3
4.7
4.7
4.7
6.8
6.8
6.8
10
10
10
15
15
15
15
22
22
22
33
33
33
47
V/7343-20
B/3528-21
C/6032-28
X/7343-43
D/7343-31
X/7343-43
D/7343-31
C/6032-28
X/7343-43
D/7343-31
E/7360-38
X/7343-43
A/3216-18
A/3216-18
A/3216-18
B/3528-21
A/3216-18
S/3216-12
B/3528-21
A/3216-18
C/6032-28
A/3216-18
B/3528-21
C/6032-28
A/3216-18
B/3528-21
C/6032-28
B/3528-21
A/3216-18
D/7343-31
C/6032-28
B/3528-21
D/7343-31
C/6032-28
B/3528-21
D/7343-31
V/7343-20
C/6032-28
B/3528-21
D/7343-31
C/6032-28
V/7343-20
X/7343-43
D/7343-31
C/6032-28
X/7343-43
T491V336(1)020A(2)
T491B336(M)020A(2)
T491C476(1)020A(2)
T491X476(1)020A(2)
T491D476(1)020A(2)
T491X686(1)020A(2)
T491D686(1)020A(2)
T491C686(1)020A(2)
T491X107(1)020A(2)
T491D107(1)020A(2)
T491E107(1)020A(2)
T491X157(1)020A(2)
T491A334(1)025A(2)
T491A474(1)025A(2)
T491A684(1)025A(2)
T491B105(1)025A(2)
T491A105(1)025A(2)
T491S105(1)025A(2)
T491B155(1)025A(2)
T491A155(1)025A(2)
T491C225(1)025A(2)
T491A225(1)025A(2)
T491B225(1)025A(2)
T491C335(1)025A(2)
T491A335(1)025A(2)
T491B335(1)025A(2)
T491C475(1)025A(2)
T491B475(1)025A(2)
T491A475(1)025A(2)
T491D685(1)025A(2)
T491C685(1)025A(2)
T491B685(1)025A(2)
T491D106(1)025A(2)
T491C106(1)025A(2)
T491B106(1)025A(2)
T491D156(1)025A(2)
T491V156(1)025A(2)
T491C156(1)025A(2)
T491B156(1)025A(2)
T491D226(1)025A(2)
T491C226(1)025A(2)
T491V226(1)025A(2)
T491X336(1)025A(2)
T491D336(1)025A(2)
T491C336(1)025A(2)
T491X476(1)025A(2)
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part
Number
DC
Leakage
DF
ESR
µA at +25°C
Maximum/
5 Minutes
6.6
6.6
9.4
9.4
9.4
13.6
13.6
13.6
20.0
20.0
20.0
30.0
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.6
0.8
0.8
0.8
1.2
1.2
1.2
1.7
1.7
1.7
2.5
2.5
2.5
3.8
3.8
3.8
3.8
5.5
5.5
5.5
8.3
8.3
8.3
11.8
µA at +25°C
Maximum/
5 Minutes
% at +25°C
120 Hz
Maximum
8.0
10.0
6.0
6.0
6.0
6.0
6.0
8.0
8.0
8.0
8.0
10.0
4.0
4.0
4.0
4.0
4.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
8.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
% at +25°C
120 Hz
Maximum
Ω at +25°C
100 kHz
Maximum
0.7
4.0
0.9
0.8
0.7
0.7
0.7
0.5
0.5
0.9
0.5
0.4
15.0
13.0
10.0
5.0
8.0
18.0
5.0
7.0
3.5
7.0
4.5
2.5
7.0
3.5
2.3
1.5
6.0
1.8
1.9
2.8
1.0
1.5
2.0
1.0
1.0
1.5
4.0
0.8
1.0
0.7
0.7
0.7
0.9
0.7
Ω at +25°C
100 kHz
Maximum
DC
Leakage
DF
ESR
Maximum Allowable
Ripple Current (rms)
mA at
+25°C
100 kHz
423
146
350
454
463
486
463
469
574
408
632
642
71
76
87
130
97
58
130
104
177
104
137
210
104
156
214
238
112
289
241
174
387
271
168
387
354
271
146
433
280
423
486
463
350
486
mA at
+25°C
100 kHz
mA at
+85°C
100 kHz
381
131
315
409
417
437
417
422
517
367
569
578
64
68
78
117
87
52
117
94
159
94
123
189
94
140
193
214
101
260
217
157
348
244
151
348
319
244
131
390
252
381
437
417
315
437
mA at
+85°C
100 kHz
mA at
+125°C
100 kHz
169
58
140
182
185
194
185
188
230
163
253
257
28
30
35
52
39
23
52
42
71
42
55
84
42
62
86
95
45
116
96
70
155
108
67
155
142
108
58
173
112
169
194
185
140
194
mA at
+125°C
100 kHz
Maximum Allowable
Ripple Current (rms)
Maximum
Operating
Temp
MSL
°C
Reflow Temp
≤ 260 °C
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
°C
Reflow Temp
≤ 260 °C
Maximum
Operating
Temp
MSL
(1) To complete KEMET part number, insert M for ±20% or K for ±10%. Designates Capacitance Tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn)-plated, G = Gold-plated, H = Standard solder coated (SnPb 5% Pb minimum), N =
Non-magnetic 100% Tin (Sn), M = Non-magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional details.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
11
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Table 1 – Ratings & Part Number Reference cont.
Rated Rated
Voltage Cap
Case
Code/
Case Size
KEMET Part
Number
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
25
25
25
25
25
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
50
50
50
50
47
68
68
100
100
0.1
0.15
0.22
0.33
0.47
0.47
0.68
0.68
1
1
1.5
1.5
1.5
2.2
2.2
2.2
3.3
3.3
3.3
4.7
4.7
4.7
6.8
6.8
6.8
10
10
10
15
15
15
22
22
33
33
47
47
0.1
0.15
0.15
0.22
D/7343-31
X/7343-43
D/7343-31
X/7343-43
E/7360-38
A/3216-18
A/3216-18
A/3216-18
A/3216-18
B/3528-21
A/3216-18
B/3528-21
A/3216-18
B/3528-21
A/3216-18
A/3216-18
C/6032-28
B/3528-21
C/6032-28
A/3216-18
B/3528-21
C/6032-28
B/3528-21
D/7343-31
D/7343-31
B/3528-21
C/6032-28
D/7343-31
V/7343-20
C/6032-28
D/7343-31
C/6032-28
V/7343-20
C/6032-28
X/7343-43
D/7343-31
X/7343-43
D/7343-31
X/7343-43
D/7343-31
X/7343-43
E/7360-38
A/3216-18
B/3528-21
A/3216-18
B/3528-21
T491D476(1)025A(2)
T491X686(1)025A(2)
T491D686(1)025A(2)
T491X107(1)025A(2)
T491E107(1)025A(2)
T491A104(1)035A(2)
T491A154(1)035A(2)
T491A224(1)035A(2)
T491A334(1)035A(2)
T491B474(1)035A(2)
T491A474(1)035A(2)
T491B684(1)035A(2)
T491A684(1)035A(2)
T491B105(1)035A(2)
T491A105(1)035A(2)
T491A155(1)035A(2)
T491C155(1)035A(2)
T491B155(1)035A(2)
T491C225(1)035A(2)
T491A225(1)035A(2)
T491B225(1)035A(2)
T491C335(1)035A(2)
T491B335(1)035A(2)
T491D335(1)035A(2)
T491D475(1)035A(2)
T491B475(1)035A(2)
T491C475(1)035A(2)
T491D685(1)035A(2)
T491V685(1)035A(2)
T491C685(1)035A(2)
T491D106(1)035A(2)
T491C106(1)035A(2)
T491V106(1)035A(2)
T491C156(1)035A(2)
T491X156(1)035A(2)
T491D156(1)035A(2)
T491X226(1)035A(2)
T491D226(1)035A(2)
T491X336(1)035A(2)
T491D336(1)035A(2)
T491X476(1)035A(2)
T491E476(1)035A(2)
T491A104(1)050A(2)
T491B154(1)050A(2)
T491A154(1)050A(2)
T491B224(1)050A(2)
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part
Number
DC
Leakage
DF
ESR
µA at +25°C
Maximum/
5 Minutes
11.8
17.0
17.0
25.0
25.0
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.8
0.8
0.8
1.2
1.2
1.2
1.6
1.6
1.6
2.4
2.4
2.4
3.5
3.5
3.5
5.3
5.3
5.3
7.7
7.7
11.6
11.6
16.5
16.5
0.5
0.5
0.5
0.5
µA at +25°C
Maximum/
5 Minutes
% at +25°C
120 Hz
Maximum
6.0
6.0
10.0
8.0
8.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
10.0
4.0
4.0
4.0
4.0
% at +25°C
120 Hz
Maximum
Ω at +25°C
100 kHz
Maximum
0.7
0.7
0.7
0.3
0.5
20.0
19.0
18.0
15.0
8.0
11.0
6.5
8.0
5.0
7.0
7.0
4.5
5.0
3.2
4.0
4.0
2.0
3.5
2.0
1.5
3.0
2.0
1.2
1.2
1.8
1.0
1.6
1.0
1.0
0.9
0.8
0.7
0.7
0.6
0.6
0.6
0.5
20.0
16.0
15.0
14.0
Ω at +25°C
100 kHz
Maximum
DC
Leakage
DF
ESR
Maximum Allowable
Ripple Current (rms)
mA at
+25°C
100 kHz
463
486
463
742
632
61
63
65
71
103
79
114
97
130
100
104
156
130
185
129
146
235
156
274
316
166
224
340
323
247
387
262
250
332
428
433
486
463
524
500
524
632
61
73
71
78
mA at
+25°C
100 kHz
mA at
+85°C
100 kHz
417
437
417
668
569
55
57
59
64
93
71
103
87
117
90
94
140
117
167
116
131
212
140
247
284
149
202
306
291
222
348
236
225
299
385
390
437
417
472
450
472
569
55
66
64
70
mA at
+85°C
100 kHz
mA at
+125°C
100 kHz
185
194
185
297
253
24
25
26
28
41
32
46
39
52
40
42
62
52
74
52
58
94
62
110
126
66
90
136
129
99
155
105
100
133
171
173
194
185
210
200
210
253
24
29
28
31
mA at
+125°C
100 kHz
Maximum Allowable
Ripple Current (rms)
Maximum
Operating
Temp
MSL
°C
Reflow Temp
≤ 260 °C
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
°C
Reflow Temp
≤ 260 °C
Maximum
Operating
Temp
MSL
(1) To complete KEMET part number, insert M for ±20% or K for ±10%. Designates Capacitance Tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn)-plated, G = Gold-plated, H = Standard solder coated (SnPb 5% Pb minimum), N =
Non-magnetic 100% Tin (Sn), M = Non-magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional details.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
12
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Table 1 – Ratings & Part Number Reference cont.
Rated Rated
Voltage Cap
Case
Code/
Case Size
KEMET Part
Number
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
0.22
0.33
0.33
0.47
0.47
0.47
0.68
0.68
0.68
1
1
1
1
1.5
1.5
2.2
2.2
3.3
3.3
4.7
4.7
6.8
6.8
10
10
15
22
A/3216-18
A/3216-18
B/3528-21
A/3216-18
C/6032-28
B/3528-21
A/3216-18
C/6032-28
B/3528-21
A/3216-18
C/6032-28
B/3528-21
V/7343-20
D/7343-31
C/6032-28
D/7343-31
C/6032-28
C/6032-28
D/7343-31
C/6032-28
D/7343-31
X/7343-43
D/7343-31
X/7343-43
D/7343-31
X/7343-43
X/7343-43
T491A224(1)050A(2)
T491A334(1)050A(2)
T491B334(1)050A(2)
T491A474(1)050A(2)
T491C474(1)050A(2)
T491B474(1)050A(2)
T491A684(1)050A(2)
T491C684(1)050A(2)
T491B684(1)050A(2)
T491A105(1)050A(2)
T491C105(1)050A(2)
T491B105(1)050A(2)
T491V105(1)050A(2)
T491D155(1)050A(2)
T491C155(1)050A(2)
T491D225(1)050A(2)
T491C225(1)050A(2)
T491C335(1)050A(2)
T491D335(1)050A(2)
T491C475(1)050A(2)
T491D475(1)050A(2)
T491X685(1)050A(2)
T491D685(1)050A(2)
T491X106(1)050A(2)
T491D106(1)050A(2)
T491X156(1)050A(2)
T491X226(1)050A(2)
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part
Number
DC
Leakage
DF
ESR
µA at +25°C
Maximum/
5 Minutes
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.8
0.8
1.1
1.1
1.7
1.7
2.4
2.4
3.4
3.4
5.0
5.0
7.5
11.0
µA at +25°C
Maximum/
5 Minutes
% at +25°C
120 Hz
Maximum
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
6.0
4.0
6.0
6.0
6.0
6.0
6.0
6.0
4.0
6.0
6.0
6.0
6.0
6.0
8.0
10.0
% at +25°C
120 Hz
Maximum
Ω at +25°C
100 kHz
Maximum
18.0
14.0
10.0
9.5
7.2
9.0
8.0
6.4
8.0
7.0
4.8
6.0
6.0
3.5
4.0
2.5
3.0
2.0
1.6
1.4
1.2
0.8
0.8
0.7
0.8
0.7
0.6
Ω at +25°C
100 kHz
Maximum
DC
Leakage
DF
ESR
Maximum Allowable
Ripple Current (rms)
mA at
+25°C
100 kHz
65
73
92
280
117
97
97
125
103
104
148
119
144
207
166
245
191
235
274
280
354
406
387
486
433
486
524
mA at
+25°C
100 kHz
mA at
+85°C
100 kHz
59
66
83
253
105
87
87
113
93
94
133
107
130
186
149
221
172
212
247
252
319
365
348
437
390
437
472
mA at
+85°C
100 kHz
mA at
+125°C
100 kHz
26
29
37
112
47
39
39
50
41
42
59
48
58
83
66
98
76
94
110
112
142
162
155
194
173
194
210
mA at
+125°C
100 kHz
Maximum Allowable
Ripple Current (rms)
Maximum
Operating
Temp
MSL
°C
Reflow Temp
≤ 260 °C
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
°C
Reflow Temp
≤ 260 °C
Maximum
Operating
Temp
MSL
(1) To complete KEMET part number, insert M for ±20% or K for ±10%. Designates Capacitance Tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn)-plated, G = Gold-plated, H = Standard solder coated (SnPb 5% Pb minimum), N =
Non-magnetic 100% Tin (Sn), M = Non-magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional details.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
13
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Recommended Voltage Derating Guidelines
85°C to 125°C
VR
67% of VR
50% of VR
33% of VR
120%
100%
% Working Voltage
% Change in working DC
voltage with temperature
Recommended maximum
application voltage
−55°C to 85°C
80%
% Change in Working DC Voltage
with Temperature
67%
60%
40%
20%
0%
−55
Recommended Maximum
Application Voltage
(As % of Rated Voltage)
25
33%
85
Temperature (ºC)
125
Ripple Current/Ripple Voltage
Permissible AC ripple voltage and current are related to
equivalent series resistance (ESR) and the power dissipation
capabilities of the device. Permissible AC ripple voltage
which may be applied is limited by two criteria:
1. The positive peak AC voltage plus the DC bias voltage,
if any, must not exceed the DC voltage rating of the
capacitor.
2. The negative peak AC voltage in combination with
bias voltage, if any, must not exceed the allowable limits
specified for the reverse voltage. See the Reverse Voltage
section for allowable limits.
The maximum power dissipation by case size can be
determined using the table at right. The maximum power
dissipation rating stated in the table must be reduced with
increasing environmental operating temperatures. Refer to
the table below for temperature compensation requirements.
Temperature Compensation Multipliers
for Maximum Ripple Current
T ≤ 25°C
1.00
T ≤ 85°C
0.90
T ≤ 125°C
0.40
T = Environmental Temperature
The maximum power dissipation rating must be reduced with increasing
environmental operating temperatures. Refer to the Temperature
Compensation Multiplier table for details.
KEMET
Case Code
EIA
Case Code
Maximum Power
Dissipation (P max)
mWatts at 25°C
w/+20°C Rise
A
B
C
D
X
E
M
S
T
U
V
W
T510X
T510E
3216–18
3528–21
6032–28
7343–31
7343–43
7360–38
3528–15
3216–12
3528–12
6032–15
7343–20
7343–15
7343–43
7360–38
75
85
110
150
165
200
120
60
70
90
125
180
270
285
Using the P max of the device, the maximum allowable rms
ripple current or voltage may be determined.
I(max) = √P max/R
E(max) = Z √P max/R
I = rms ripple current (amperes)
E = rms ripple voltage (volts)
P max = maximum power dissipation (watts)
R = ESR at specified frequency (ohms)
Z = Impedance at specified frequency (ohms)
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
14
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Reverse Voltage
Solid tantalum capacitors are polar devices and may be permanently damaged or destroyed if connected with the wrong
polarity. The positive terminal is identified on the capacitor body by a stripe, plus, in some cases a beveled edge. A small
degree of transient reverse voltage is permissible for short periods per the table. The capacitors should not be operated
continuously in reverse mode, even within these limits.
Temperature
Permissible Transient Reverse Voltage
25°C
85°C
125°C
15% of Rated Voltage
5% of Rated Voltage
1% of Rated Voltage
Table 2 – Land Dimensions/Courtyard
KEMET
Metric
Size
Code
Density Level A:
Maximum (Most) Land
Protrusion (mm)
Density Level B:
Median (Nominal) Land
Protrusion (mm)
Density Level C:
Minimum (Least) Land
Protrusion (mm)
Case
EIA
W
L
S
V1
V2
W
L
S
V1
V2
W
L
S
V1
V2
A
3216–18
1.35
2.20
0.62
6.02
2.80
1.23
1.80
0.82
4.92
2.30
1.13
1.42
0.98
4.06
2.04
B
3528–21
2.35
2.21
0.92
6.32
4.00
2.23
1.80
1.12
5.22
3.50
2.13
1.42
1.28
4.36
3.24
C
6032–28
2.35
2.77
2.37
8.92
4.50
2.23
2.37
2.57
7.82
4.00
2.13
1.99
2.73
6.96
3.74
D
7343–31
2.55
2.77
3.67
10.22
5.60
2.43
2.37
3.87
9.12
5.10
2.33
1.99
4.03
8.26
4.84
M
3528-15
2.35
2.20
0.92
6.32
4.00
2.23
1.80
1.12
5.22
3.50
2.13
1.42
1.28
4.36
3.24
S2
3216–12
1.35
2.20
0.62
6.02
2.80
1.23
1.80
0.82
4.92
2.30
1.13
1.42
0.98
4.06
2.04
T
3528–12
2.35
2.20
0.92
6.32
4.00
2.23
1.80
1.12
5.22
3.50
2.13
1.42
1.28
4.36
3.24
U
6032–15
2.35
2.77
2.37
8.92
4.50
2.23
2.37
2.57
7.82
4.00
2.13
1.99
2.73
6.96
3.74
V
7343–21
2.55
2.77
3.67
10.22
5.60
2.43
2.37
3.87
9.12
5.10
2.33
1.99
4.03
8.26
4.84
W
7343–15
2.55
2.77
3.67
10.22
5.60
2.43
2.37
3.87
9.12
5.10
2.33
1.99
4.03
8.26
4.84
X1
7343–43
2.55
2.77
3.67
10.22
5.60
2.43
2.37
3.87
9.12
5.10
2.33
1.99
4.03
8.26
4.84
Density Level A: For low-density product applications. Recommended for wave solder applications and provides a wider process window for reflow
solder processes.
Density Level B: For products with a moderate level of component density. Provides a robust solder attachment condition for reflow solder processes.
Density Level C: For high component density product applications. Before adapting the minimum land pattern variations, the user should perform
qualification testing based on the conditions outlined in IPC standard 7351 (IPC–7351).
1
Height of these chips may create problems in wave soldering.
V1
L
L
W
W
V2
S
Grid Placement Courtyard
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
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T2005_T491 • 8/25/2022
15
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Soldering Process
The KEMET families of surface mount capacitors are
compatible with wave (single or dual), convection, IR, or vapor
phase reflow techniques. Preheating of these components
is recommended to avoid extreme thermal stress. KEMET's
recommended profile conditions for convection and IR
reflow reflect the profile conditions of the IPC/J-STD-020D
standard for moisture sensitivity testing. The devices can
safely withstand a maximum of three reflow passes at these
conditions.
Please note that although the X/7343–43 case size can
withstand wave soldering, the tall profile (4.3 mm maximum)
dictates care in wave process development.
Profile Feature
SnPb Assembly Pb-Free Assembly
Preheat/Soak
Temperature Minimum (TSmin)
100°C
150°C
Temperature Maximum (TSmax)
150°C
200°C
Time (t s) from Tsmin to Tsmax)
60 – 120 seconds
60 – 120 seconds
Ramp-up Rate (TL to TP)
3°C/second maximum
3°C/second maximum
Liquidous Temperature (TL)
183°C
217°C
Time Above Liquidous (t L)
60 – 150 seconds
220°C*
235°C**
60 – 150 seconds
250°C*
260°C**
20 seconds maximum
30 seconds maximum
6°C/second maximum
6°C/second maximum
6 minutes maximum
8 minutes maximum
Peak Temperature (TP)
Time within 5°C of Maximum
Peak Temperature (t P)
Ramp-down Rate (TP to TL)
Time 25°C to Peak
Temperature
Note: All temperatures refer to the center of the package, measured on the
During typical reflow operations, a slight darkening of the
gold-colored epoxy may be observed. This slight darkening is
normal and not harmful to the product. Marking permanency
is not affected by this change.
Temperature
Hand soldering should be performed with care due to the
package body surface that is facing up during assembly reflow.
difficulty in process control. If performed, care should be
* For Case Size height > 2.5 mm
** For Case Size height ≤ 2.5 mm
taken to avoid contact of the soldering iron to the molded
case. The iron should be used to heat the solder pad, applying
solder between the pad and the termination, until reflow
TP
tP
Maximum Ramp Up Rate = 3°C/second
occurs. Once reflow occurs, the iron should be removed
Maximum Ramp Down Rate = 6°C/second
TL
immediately. “Wiping” the edges of a chip and heating the top
tL
surface is not recommended.
Tsmax
Tsmin
25
ts
25°C to Peak
Time
Storage
Tantalum chip capacitors should be stored in normal working environments. While the chips themselves are quite robust in
other environments, solderability will be degraded by exposure to high temperatures, high humidity, corrosive atmospheres,
and long term storage. In addition, packaging materials will be degraded by high temperature – reels may soften or warp
and tape peel force may increase. KEMET recommends that maximum storage temperature not exceed 40°C and maximum
storage humidity not exceed 60% relative humidity. Temperature fluctuations should be minimized to avoid condensation
on the parts and atmospheres should be free of chlorine and sulphur bearing compounds. For optimized solderability, chip
stock should be used promptly, preferably within three years of receipt.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
16
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Construction
Polarity Stripe (+)
Molded Epoxy
Case
Detailed Cross Section
Silver Paint
(Fourth Layer)
Polarity
Bevel (+)
Tantalum Wire
Leadframe
(− Cathode)
Washer
Tantalum Wire
Weld
(to attach wire)
Carbon
(Third Layer)
Silver Adhesive
Leadframe
(+ Anode)
Molded Epoxy
Case
MnO2
(Second Layer)
Washer
Ta2O5 Dielectric
(First Layer)
Tantalum
Capacitor Marking
Date Code *
KEMET
Industrial
Grade MnO2
Polarity
Indicator (+)
1 digit = last number of year
8 = 2018
9 = 2019
0 = 2020
1 = 2021
2 = 2022
3 = 2023
2nd and 3rd digit = week of the
year
01 = 1st week of the year to
52 = 52nd week of the year
st
Picofarad
Code
KEMET
ID
Rated
Voltage
Date
Code*
* 216 = 16th week of 2022
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
17
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Tape & Reel Packaging Information
KEMET’s molded chip capacitor families are packaged in 8 and 12 mm plastic tape on 7" and 13" reels in accordance with
EIA Standard 481: Embossed Carrier Taping of Surface Mount Components for Automatic Handling. This packaging system
is compatible with all tape-fed automatic pick-and-place systems.
Right hand
orientation
only
(+)
Embossed carrier
(−)
Embossment
Top tape thickness
0.10 mm (0.004”)
maximum thickness
180 mm (7.0”) or
330 mm (13.”)
8 mm (0.315”) or
12 mm (0.472”)
Table 3 – Packaging Quantity
Case Code
KEMET
S
T
M
U
L
W
Z
V
A
B
C
D
Q
Y
X
E/T428P
H
O
EIA
3216-12
3528-12
3528-15
6032-15
6032-19
7343-15
7343-17
7343-20
3216-18
3528-21
6032-28
7343-31
7343-12
7343-40
7343-43
7360-38
7360-20
7360-43
Tape Width
(mm)
7" Reel*
13" Reel*
8
8
8
12
12
12
12
12
8
8
12
12
12
12
12
12
12
12
2,500
3,000
2,500
1,000
1,000
1,000
1,000
1,000
2,000
2,000
500
500
1,000
500
500
500
1,000
250
10,000
10,000
8,000
5,000
3,000
3,000
3,000
3,000
9,000
8,000
3,000
2,500
3,000
2,000
2,000
2,000
2,500
1,000
* No C-Spec required for 7" reel packaging. C-7280 required for 13" reel packaging.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
18
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Figure 1 – Embossed (Plastic) Carrier Tape Dimensions
P2
T
T2
ØD0
P0
(10 pitches cumulative
tolerance on tape ±0.2 mm)
A0
E1
F
K0
B1
E2
B0
S1
W
P1
T1
Center Lines of Cavity
B1 is for tape feeder reference only,
including draft concentric about B0.
Embossment
For cavity size,
see Note 1, Table 4
ØD1
Cover Tape
User Direction of Unreeling
Table 4 – Embossed (Plastic) Carrier Tape Dimensions
Metric will govern
Constant Dimensions — Millimeters (Inches)
Tape Size
8 mm
12 mm
D1 Minimum
Note 1
D0
1.5 +0.10/−0.0
(0.059 +0.004/−0.0)
1.0
(0.039)
1.5
(0.059)
E1
P0
R Reference S1 Minimum
T1
T Maximum
Note 2
Note 3
Maximum
P2
1.75 ±0.10
4.0 ±0.10
2.0 ±0.05
(0.069 ±0.004) (0.157 ±0.004) (0.079 ±0.002)
25.0
(0.984)
30
(1.181)
0.600
(0.024)
0.600
(0.024)
0.100
(0.004)
Variable Dimensions — Millimeters (Inches)
Tape Size
Pitch
B1 Maximum
Note 4
8 mm
Single (4 mm)
4.35
(0.171)
6.25
(0.246)
12 mm
Single (4 mm)
and Double
(8 mm)
8.2
(0.323)
10.25
(0.404)
E2 Minimum
F
P1
3.5 ±0.05
2.0 ±0.05 or 4.0 ±0.10
(0.138 ±0.002) (0.079 ±0.002 or 0.157 ±0.004)
2.0 ±0.05 (0.079 ±0.002) or
5.5 ±0.05
4.0 ±0.10 (0.157 ±0.004) or
(0.217 ±0.002)
8.0 ±0.10 (0.315 ±0.004)
T2 Maximum W Maximum A0, B0 & K0
2.5
(0.098)
8.3
(0.327)
4.6
(0.181)
12.3
(0.484)
Note 5
1. The embossment hole location shall be measured from the sprocket hole controlling the location of the embossment. Dimensions of embossment
location and hole location shall be applied independent of each other.
2. The tape, with or without components, shall pass around R without damage (see Figure 4).
3. If S1 < 1.0 mm, there may not be enough area for cover tape to be properly applied (see EIA Standard 481–D, paragraph 4.3, section b).
4. B1 dimension is a reference dimension for tape feeder clearance only.
5. The cavity defined by A0, B0 and K0 shall surround the component with sufficient clearance that:
(a) the component does not protrude above the top surface of the carrier tape.
(b) the component can be removed from the cavity in a vertical direction without mechanical restriction, after the top cover tape has been removed.
(c) rotation of the component is limited to 20° maximum for 8 and 12 mm tapes (see Figure 2).
(d) lateral movement of the component is restricted to 0.5 mm maximum for 8 mm and 12 mm wide tape (see Figure 3).
(e) see Addendum in EIA Standard 481–D for standards relating to more precise taping requirements.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
19
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Packaging Information Performance Notes
1. Cover tape break force: 1.0 kg minimum.
2. Cover tape peel strength: The total peel strength of the cover tape from the carrier tape shall be:
Tape Width
Peel Strength
8 mm
0.1 to 1.0 newton (10 to 100 gf)
12 mm
0.1 to 1.3 newton (10 to 130 gf)
The direction of the pull shall be opposite the direction of the carrier tape travel. The pull angle of the carrier tape shall be
165° to 180° from the plane of the carrier tape. During peeling, the carrier and/or cover tape shall be pulled at a velocity of
300 ±10 mm/minute.
3. Labeling: Bar code labeling (standard or custom) shall be on the side of the reel opposite the sprocket holes. Refer to EIA
Standards 556 and 624.
Figure 2 – Maximum Component Rotation
°
T
Maximum Component Rotation
Top View
Maximum Component Rotation
Side View
Typical Pocket Centerline
Tape
Width (mm)
8, 12
Bo
Maximum
Rotation (
20
°
T)
°
s
Tape
Maximum
Width (mm) Rotation (
8, 12
20
Typical Component Centerline
°
S)
Ao
Figure 3 – Maximum Lateral Movement
Figure 4 – Bending Radius
8 mm & 12 mm Tape
0.5 mm maximum
0.5 mm maximum
Embossed
Carrier
Punched
Carrier
R
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Bending
Radius
R
T2005_T491 • 8/25/2022
20
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Figure 5 – Reel Dimensions
Full Radius,
See Note
W3
(Includes
flange distortion
at outer edge)
Access Hole at
Slot Location
(Ø 40 mm minimum)
W2
D
A
(See Note)
N
C
(Arbor hole
diameter)
B
(see Note)
(Measured at hub)
W1
(Measured at hub)
If present,
tape slot in core
for tape start:
2.5 mm minimum width x
10.0 mm minimum depth
Note: Drive spokes optional; if used, dimensions B and D shall apply.
Table 5 – Reel Dimensions
Metric will govern
Constant Dimensions — Millimeters (Inches)
Tape Size
A
B Minimum
C
D Minimum
8 mm
178 ±0.20
(7.008 ±0.008)
or
330 ±0.20
(13.000 ±0.008)
1.5
(0.059)
13.0 +0.5/−0.2
(0.521 +0.02/−0.008)
20.2
(0.795)
12 mm
Variable Dimensions — Millimeters (Inches)
Tape Size
8 mm
12 mm
N Minimum
W1
W2 Maximum
W3
50
(1.969)
8.4 +1.5/−0.0
(0.331 +0.059/−0.0)
12.4 +2.0/−0.0
(0.488 +0.078/−0.0)
14.4
(0.567)
18.4
(0.724)
Shall accommodate tape
width without interference
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
21
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
Figure 6 – Tape Leader & Trailer Dimensions
Embossed Carrier
Punched Carrier
8 mm & 12 mm only
END
Carrier Tape
Round Sprocket Holes
START
Top Cover Tape
Elongated Sprocket Holes
(32 mm tape and wider)
Trailer
160 mm minimum
Components
100 mm
minimum Leader
400 mm minimum
Top Cover Tape
Figure 7 – Maximum Camber
Elongated Sprocket Holes
(32 mm & wider tapes)
Carrier Tape
Round Sprocket Holes
1 mm maximum, either direction
Straight Edge
250 mm
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
22
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO 2
KEMET Electronics Corporation Sales Offices
For a complete list of our global sales offi ces, please visit www.kemet.com/sales.
Disclaimer
All product specifi cations, statements, information and data (collectively, the “Information”) in this datasheet are subject to change. The customer is responsible for
checking and verifying the extent to which the Information contained in this publication is applicable to an order at the time the order is placed. All Information given
herein is believed to be accurate and reliable, but it is presented without guarantee, warranty, or responsibility of any kind, expressed or implied.
Statements of suitability for certain applications are based on KEMET Electronics Corporation’s (“KEMET”) knowledge of typical operating conditions for such
applications, but are not intended to constitute – and KEMET specifi cally disclaims – any warranty concerning suitability for a specifi c customer application or use.
The Information is intended for use only by customers who have the requisite experience and capability to determine the correct products for their application. Any
technical advice inferred from this Information or otherwise provided by KEMET with reference to the use of KEMET’s products is given gratis, and KEMET assumes
no obligation or liability for the advice given or results obtained.
Although KEMET designs and manufactures its products to the most stringent quality and safety standards, given the current state of the art, isolated component
failures may still occur. Accordingly, customer applications which require a high degree of reliability or safety should employ suitable designs or other safeguards
(such as installation of protective circuitry or redundancies) in order to ensure that the failure of an electrical component does not result in a risk of personal injury
or property damage.
Although all product–related warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicated or that other
measures may not be required.
KEMET is a registered trademark of KEMET Electronics Corporation.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2005_T491 • 8/25/2022
23