Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/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 physical outline and dimensions of T491
conform to this global standard. Low profile case sizes are
available. This series 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. The symmetrical terminations offer total
compliancy to provide the thermal and mechanical stress
relief required for today's technology. 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
• Extended range values
• Low profile case sizes
Applications
Typical applications include decoupling and filtering in automotive 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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
1
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/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
AUTO
Capacitor
Class
Series
Case
Size
Capacitance
Code (pF)
Capacitance
Tolerance
Rated
Voltage
(VDC)
Failure
Rate/
Design
Termination Finish
C-Spec 1
A
B
C
D
E
S
T
U
V
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)
AUTO =
Automotive
grade
AUTO =
AEC–Q200
certification
T=
Tantalum
Industrial
Packaging
(C-Spec)
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 – 470 µF at 120 Hz/25°C
K tolerance (10%), M tolerance (20%)
4 – 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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
2
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/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
Certification
KEMET’s Internal Qualification Plan for this Tantalum series of capacitors follows AEC–Q200 guidelines. Standard catalog
part types ordered without a specific automotive designator, i.e., suffix AUTO or four digit customer specific designator
(C-Spec), are not considered KEMET automotive grade tantalum capacitors.
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
3
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/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
B
Glue pad
shape/design at
KEMET's option
E
F
P
T
Termination cutout
at KEMET's option,
either end
S
G
S
L
Case Size
KEMET
EIA
Component
L
W
H
F ±0.1
±(0.004)
S
B ±0.15
(Ref)
±0.006
X
(Ref)
P
(Ref)
R
(Ref)
T
(Ref)
A
(Min)
G
(Ref)
E
(Ref)
0.4
(0.016)
0.10±0.10
(0.004±0.004)
0.4
(0.016)
0.4
(0.016)
0.13
(0.005)
1.2
(0.047)
1.1
(0.043)
1.3
(0.051)
A
3.2±0.2
1.6±0.2
1.6±0.2
3216–18 (0.126±0.008)
(0.063±0.008) (0.063±0.008)
1.2
0.80 (0.032) +0.2
(0.047) (0.008)/−0.3(0.011)
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
0.80 (0.032) +0.1
0.4
(0.087) (0.004)/−0.3(0.011) (0.016)
0.10±0.10
0.5
(0.004±0.004) (0.020)
1.0
(0.039)
0.13
(0.005)
1.9
(0.075)
1.8
(0.071)
2.2
(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
(0.004±0.004) (0.035)
1.0
(0.039)
0.13
(0.005)
2.9
(0.114)
2.8
(0.110)
2.4
(0.094)
D
2.4
(0.094)
1.30 (0.051)
±0.3 (0.011)
0.5
(0.020)
0.10±0.10
0.9
(0.004±0.004) (0.035)
1.0
(0.039)
0.13
(0.005)
3.6
(0.142)
3.5
(0.138)
3.5
(0.138)
X
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)
7343–
7.3±0.3
4.3±0.3
4.0±0.3
(0.287±0.012) (0.169±0.012) (0.157±0.012)
43
2.4
(0.094)
1.30 (0.051)
±0.3 (0.011)
0.5
(0.020)
0.10±0.10
1.7
(0.004±0.004) (0.067)
1.0
(0.039)
0.13
(0.005)
3.6
(0.142)
3.5
(0.138)
3.5
(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
(0.005)
3.6
(0.142)
3.5
(0.138)
3.5
(0.138)
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
(0.005)
3.6
(0.142)
3.5
(0.138)
3.5
(0.138)
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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
4
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO 2
Table 1 – Ratings & Part Number Reference
Rated
Voltage
Rated
Cap
Case Code/
Case Size
VDC at 85°C
µF
KEMET/EIA
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
6.3
6.3
6.3
6.3
6.3
10
10
10
4.7
10
33
47
47
68
100
150
2.2
3.3
4.7
6.8
6.8
10
10
15
15
15
22
22
22
33
33
33
47
47
47
47
68
68
68
68
100
100
100
150
150
220
220
220
330
330
330
470
470
1
1.5
2.2
A/3216-18
A/3216-18
B/3528-21
A/3216-18
C/6032-28
C/6032-28
A/3216-18
A/3216-18
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
C/6032-28
A/3216-18
B/3528-21
C/6032-28
A/3216-18
B/3528-21
C/6032-28
A/3216-18
B/3528-21
C/6032-28
D/7343-31
A/3216-18
B/3528-21
C/6032-28
D/7343-31
B/3528-21
C/6032-28
D/7343-31
C/6032-28
D/7343-31
C/6032-28
D/7343-31
X/7343-43
D/7343-31
X/7343-43
E/7360-38
X/7343-43
E/7360-38
A/3216-18
A/3216-18
A/3216-18
VDC at 85°C
µF
KEMET/EIA
Rated
Voltage
Rated Cap
Case Code/
Case Size
KEMET Part Number
DC
Leakage
DF
ESR
Ripple
Current
Maximum
Operating
Temp
(See below for
part options)
T491A475(1)004A(2)AUTO
T491A106(1)004A(2)AUTO
T491B336(1)004A(2)AUTO
T491A476(1)004A(2)AUTO
T491C476(1)004A(2)AUTO
T491C686(1)004A(2)AUTO
T491A107M004A(2)AUTO
T491A157(1)004A(2)AUTO
T491A225(1)006A(2)AUTO
T491A335(1)006A(2)AUTO
T491A475(1)006A(2)AUTO
T491A685(1)006A(2)AUTO
T491B685(1)006A(2)AUTO
T491A106(1)006A(2)AUTO
T491B106(1)006A(2)AUTO
T491A156(1)006A(2)AUTO
T491B156(1)006A(2)AUTO
T491C156(1)006A(2)AUTO
T491A226(1)006A(2)AUTO
T491B226(1)006A(2)AUTO
T491C226(1)006A(2)AUTO
T491A336(1)006A(2)AUTO
T491B336(1)006A(2)AUTO
T491C336(1)006A(2)AUTO
T491A476(M)006A(2)AUTO
T491B476(1)006A(2)AUTO
T491C476(1)006A(2)AUTO
T491D476(1)006A(2)AUTO
T491A686(1)006A(2)AUTO
T491B686(1)006A(2)AUTO
T491C686(1)006A(2)AUTO
T491D686(1)006A(2)AUTO
T491B107(1)006A(2)AUTO
T491C107(1)006A(2)AUTO
T491D107(1)006A(2)AUTO
T491C157(1)006A(2)AUTO
T491D157(1)006A(2)AUTO
T491C227(1)006A(2)AUTO
T491D227(1)006A(2)AUTO
T491X227(1)006A(2)AUTO
T491D337(1)006A(2)AUTO
T491X337(1)006A(2)AUTO
T491E337(1)006A(2)AUTO
T491X477(1)006A(2)AUTO
T491E477(1)006A(2)AUTO
T491A105(1)010A(2)AUTO
T491A155(1)010A(2)AUTO
T491A225(1)010A(2)AUTO
(See below for
part options)
µA +25°C
Maximum/5 Min
0.5
0.5
1.3
1.9
1.9
2.7
4.0
6.0
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.9
0.9
0.9
1.4
1.4
1.4
2.1
2.1
2.1
3.0
3.0
3.0
3.0
4.3
4.3
4.3
4.3
6.3
6.3
6.3
9.5
9.5
14
14
14
20.8
20.8
20.8
29.6
29.6
0.5
0.5
0.5
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
6
6
6
10
6
6
30
12
6
6
6
6
6
6
6
6
6
6
6
6
6
12
6
6
12
6
6
6
30
8
6
6
15
8
8
8
8
10
8
8
8
8
8
10
10
4
6
6
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum
8
4.5
2.5
2.5
1.6
1.5
4.0
2.0
8
7
5.5
6.0
3.5
4
3.5
3.5
3
1.8
4
2.5
1.8
2.5
2.2
1.6
3.5
2
1.5
0.8
4
0.9
1.2
0.8
3.0
0.9
0.8
1.2
0.7
1
0.7
0.7
0.4
0.4
0.5
0.4
0.4
10
8
7
Ω at 25°C
100 kHz Maximum
(mA) 100 kHz,
25°C
97
129
184
173
262
271
137
194
97
104
117
112
156
137
156
146
168
247
137
184
247
173
197
262
146
206
271
433
137
307
303
433
168
350
433
303
463
332
463
486
612
642
632
642
707
87
97
104
(mA) 100 kHz,
25°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
125
125
KEMET Part Number
DC
Leakage
DF
ESR
Ripple
Current
Maximum
Operating
Temp
°C
°C
(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 detail.
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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
5
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO 2
Table 1 – Ratings & Part Number Reference cont.
Maximum
Operating
Temp
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part Number
DC
Leakage
DF
ESR
Ripple
Current
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum
(mA) 100 kHz,
25°C
°C
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
16
16
16
16
16
16
16
16
16
16
16
16
2.2
3.3
4.7
4.7
6.8
6.8
10
10
10
15
15
15
22
22
22
33
33
33
47
47
47
68
68
68
100
100
100
150
150
150
220
220
330
330
330
470
1
1.5
2.2
3.3
3.3
4.7
4.7
4.7
6.8
6.8
6.8
10
B/3528-21
A/3216-18
A/3216-18
B/3528-21
A/3216-18
B/3528-21
A/3216-18
B/3528-21
C/6032-28
A/3216-18
B/3528-21
C/6032-28
A/3216-18
B/3528-21
C/6032-28
B/3528-21
C/6032-28
D/7343-31
B/3528-21
C/6032-28
D/7343-31
B/3528-21
C/6032-28
D/7343-31
B/3528-21
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
E/7360-38
X/7343-43
A/3216-18
A/3216-18
A/3216-18
A/3216-18
B/3528-21
A/3216-18
B/3528-21
C/6032-28
A/3216-18
B/3528-21
C/6032-28
A/3216-18
µF
KEMET/EIA
0.5
0.5
0.5
0.5
0.7
0.7
1.0
1.0
1.0
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
10.0
10.0
10.0
15.0
15.0
15.0
22.0
22.0
33
33
33
47
0.5
0.5
0.5
0.5
0.5
0.8
0.8
0.8
1.1
1.1
1.1
1.6
µA +25°C
Maximum/5 Min
6
6
6
6
6
6
6
6
6
8
6
6
8
6
6
6
6
6
8
6
6
8
6
6
15
8
8
10
8
8
8
8
10
10
10
10
4
6
6
6
6
6
6
6
6
6
6
8
% at +25°C
120 Hz Maximum
3.5
5.5
5.0
3.5
4
3.5
3.8
3
1.8
6
2.5
1.8
3.2
2.3
1.6
1.8
1.5
0.8
1
1.2
0.8
1.0
1.2
0.8
1.2
1.2
0.7
0.9
0.7
0.7
0.5
0.5
0.5
0.5
0.5
0.2
10
8
6
5
3.5
4
3.5
2.4
3.5
2.5
1.9
7
Ω at 25°C
100 kHz Maximum
156
117
122
156
137
156
140
168
247
112
184
247
153
192
262
217
271
433
292
303
433
292
303
433
266
303
463
350
463
486
548
574
548
574
632
908
87
97
112
122
156
137
156
214
146
184
241
104
(mA) 100 kHz,
25°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
125
125
VDC at 85°C
T491B225(1)010A(2)AUTO
T491A335(1)010A(2)AUTO
T491A475(1)010A(2)AUTO
T491B475(1)010A(2)AUTO
T491A685(1)010A(2)AUTO
T491B685(1)010A(2)AUTO
T491A106(1)010A(2)AUTO
T491B106(1)010A(2)AUTO
T491C106(1)010A(2)AUTO
T491A156(1)010A(2)AUTO
T491B156(1)010A(2)AUTO
T491C156(1)010A(2)AUTO
T491A226(1)010A(2)AUTO
T491B226(1)010A(2)AUTO
T491C226(1)010A(2)AUTO
T491B336(1)010A(2)AUTO
T491C336(1)010A(2)AUTO
T491D336(1)010A(2)AUTO
T491B476(1)010A(2)AUTO
T491C476(1)010A(2)AUTO
T491D476(1)010A(2)AUTO
T491B686(1)010A(2)AUTO
T491C686(1)010A(2)AUTO
T491D686(1)010A(2)AUTO
T491B107(1)010A(2)AUTO
T491C107(1)010A(2)AUTO
T491D107(1)010A(2)AUTO
T491C157(1)010A(2)AUTO
T491D157(1)010A(2)AUTO
T491X157(1)010A(2)AUTO
T491D227(1)010A(2)AUTO
T491X227(1)010A(2)AUTO
T491D337(1)010A(2)AUTO
T491X337(1)010A(2)AUTO
T491E337(1)010A(2)AUTO
T491X477(1)010A(2)AUTO
T491A105(1)016A(2)AUTO
T491A155(1)016A(2)AUTO
T491A225(1)016A(2)AUTO
T491A335(1)016A(2)AUTO
T491B335(1)016A(2)AUTO
T491A475(1)016A(2)AUTO
T491B475(1)016A(2)AUTO
T491C475(1)016A(2)AUTO
T491A685(1)016A(2)AUTO
T491B685(1)016A(2)AUTO
T491C685(1)016A(2)AUTO
T491A106(1)016A(2)AUTO
(See below for
part options)
Rated
Voltage
Rated Cap
Case Code/
Case Size
KEMET Part Number
DC
Leakage
DF
ESR
Ripple
Current
°C
Maximum
Operating
Temp
(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 detail.
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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
6
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO 2
Table 1 – Ratings & Part Number Reference cont.
Maximum
Operating
Temp
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part Number
DC
Leakage
DF
ESR
Ripple
Current
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum
(mA) 100 kHz,
25°C
°C
16
16
16
16
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
25
25
25
25
25
10
10
15
15
22
22
22
33
33
33
47
47
68
68
100
100
100
150
0.68
1
1.5
2.2
2.2
3.3
3.3
4.7
4.7
4.7
6.8
6.8
6.8
10
10
15
15
22
33
33
47
47
47
68
100
0.33
0.47
0.68
1
1
B/3528-21
C/6032-28
B/3528-21
C/6032-28
B/3528-21
C/6032-28
D/7343-31
B/3528-21
C/6032-28
D/7343-31
C/6032-28
D/7343-31
C/6032-28
D/7343-31
C/6032-28
D/7343-31
X/7343-43
X/7343-43
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
C/6032-28
A/3216-18
B/3528-21
C/6032-28
B/3528-21
C/6032-28
C/6032-28
D/7343-31
D/7343-31
C/6032-28
D/7343-31
C/6032-28
D/7343-31
X/7343-43
X/7343-43
E/7360-38
A/3216-18
A/3216-18
A/3216-18
A/3216-18
B/3528-21
µF
KEMET/EIA
1.6
1.6
2.4
2.4
3.5
3.5
3.5
5.3
5.3
5.3
7.5
7.5
11
11
16.0
16.0
16.0
24.0
0.5
0.5
0.5
0.5
0.5
0.7
0.7
0.9
0.9
0.9
1.4
1.4
1.4
2.0
2.0
3.0
3.0
4.4
6.6
6.6
9.4
9.4
9.4
13.6
20.0
0.5
0.5
0.5
0.5
0.5
µA +25°C
Maximum/5 Min
6
6
6
6
6
6
6
6
6
6
6
6
6
6
10
8
8
8
4
4
6
6
6
6
6
6
6
6
8
6
6
6
6
6
6
6
6
6
6
6
6
6
8
4
4
4
4
4
% at +25°C
120 Hz Maximum
2.5
1.8
2
1.6
2.2
1.5
0.8
2
1.2
0.8
1.2
0.8
1
0.7
1.0
0.7
0.7
0.5
12
9
6.5
6
3.5
4
3
4
3
2.4
6
2.5
1.9
2
1.6
1.7
1
0.8
1.2
0.8
0.9
0.7
0.8
0.7
0.5
15
13
10
8
5
Ω at 25°C
100 kHz Maximum
184
247
206
262
197
271
433
206
303
433
303
433
332
463
332
463
486
574
79
91
107
112
156
137
168
137
168
214
112
184
241
206
262
254
387
433
303
433
350
463
454
486
632
71
76
87
97
130
(mA) 100 kHz,
25°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
125
125
VDC at 85°C
T491B106(1)016A(2)AUTO
T491C106(1)016A(2)AUTO
T491B156(1)016A(2)AUTO
T491C156(1)016A(2)AUTO
T491B226(1)016A(2)AUTO
T491C226(1)016A(2)AUTO
T491D226(1)016A(2)AUTO
T491B336(1)016A(2)AUTO
T491C336(1)016A(2)AUTO
T491D336(1)016A(2)AUTO
T491C476(1)016A(2)AUTO
T491D476(1)016A(2)AUTO
T491C686(1)016A(2)AUTO
T491D686(1)016A(2)AUTO
T491C107(1)016A(2)AUTO
T491D107(1)016A(2)AUTO
T491X107(1)016A(2)AUTO
T491X157(1)016A(2)AUTO
T491A684(1)020A(2)AUTO
T491A105(1)020A(2)AUTO
T491A155(1)020A(2)AUTO
T491A225(1)020A(2)AUTO
T491B225(1)020A(2)AUTO
T491A335(1)020A(2)AUTO
T491B335(1)020A(2)AUTO
T491A475(1)020A(2)AUTO
T491B475(1)020A(2)AUTO
T491C475(1)020A(2)AUTO
T491A685(1)020A(2)AUTO
T491B685(1)020A(2)AUTO
T491C685(1)020A(2)AUTO
T491B106(1)020A(2)AUTO
T491C106(1)020A(2)AUTO
T491C156(1)020A(2)AUTO
T491D156(1)020A(2)AUTO
T491D226(1)020A(2)AUTO
T491C336(1)020A(2)AUTO
T491D336(1)020A(2)AUTO
T491C476(1)020A(2)AUTO
T491D476(1)020A(2)AUTO
T491X476(1)020A(2)AUTO
T491X686(1)020A(2)AUTO
T491E107(1)020A(2)AUTO
T491A334(1)025A(2)AUTO
T491A474(1)025A(2)AUTO
T491A684(1)025A(2)AUTO
T491A105(1)025A(2)AUTO
T491B105(1)025A(2)AUTO
(See below for
part options)
Rated
Voltage
Rated Cap
Case Code/
Case Size
KEMET Part Number
DC
Leakage
DF
ESR
Ripple
Current
°C
Maximum
Operating
Temp
(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 detail.
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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
7
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO 2
Table 1 – Ratings & Part Number Reference cont.
Maximum
Operating
Temp
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part Number
DC
Leakage
DF
ESR
Ripple
Current
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum
(mA) 100 kHz,
25°C
°C
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
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
1.5
1.5
2.2
2.2
2.2
3.3
3.3
3.3
4.7
6.8
6.8
6.8
10
10
15
15
22
22
33
33
33
47
47
68
0.1
0.15
0.22
0.33
0.47
0.47
0.68
0.68
1
1
1.5
1.5
2.2
2.2
2.2
3.3
3.3
4.7
4.7
4.7
6.8
6.8
10
10
10
A/3216-18
B/3528-21
A/3216-18
B/3528-21
C/6032-28
A/3216-18
B/3528-21
C/6032-28
C/6032-28
B/3528-21
C/6032-28
D/7343-31
C/6032-28
D/7343-31
C/6032-28
D/7343-31
C/6032-28
D/7343-31
C/6032-28
D/7343-31
X/7343-43
D/7343-31
X/7343-43
X/7343-43
A/3216-18
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
B/3528-21
C/6032-28
A/3216-18
B/3528-21
C/6032-28
B/3528-21
C/6032-28
B/3528-21
C/6032-28
D/7343-31
D/7343-31
V/7343-20
C/6032-28
D/7343-31
V/7343-20
µF
KEMET/EIA
0.5
0.5
0.6
0.6
0.6
0.8
0.8
0.8
1.2
1.7
1.7
1.7
2.5
2.5
3.8
3.8
5.5
5.5
8.3
8.3
8.3
11.8
11.8
17.0
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.8
0.8
0.8
1.2
1.2
1.6
1.6
1.6
2.4
2.4
3.5
3.5
3.5
µA +25°C
Maximum/5 Min
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
4
4
4
4
4
4
4
4
4
4
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
% at +25°C
120 Hz Maximum
7
5
7
4.5
3.5
7
3.5
2.5
2.3
2.8
1.9
1.2
1.5
1
1.5
1
1
0.8
0.9
0.7
0.7
0.7
0.7
0.7
20
19
18
15
11
8
8
6.5
7
5
5
4.5
4.0
4.0
3.2
3.5
2.4
3
2
1.5
1.2
1.2
1.6
1
1
Ω at 25°C
100 kHz Maximum
104
130
104
137
177
104
156
210
219
174
241
354
271
387
271
387
332
433
350
463
486
463
486
486
61
63
65
71
83
103
97
114
104
130
130
156
137
146
185
156
214
168
235
316
354
104
262
387
354
(mA) 100 kHz,
25°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
125
125
125
VDC at 85°C
T491A155(1)025A(2)AUTO
T491B155(1)025A(2)AUTO
T491A225(1)025A(2)AUTO
T491B225(1)025A(2)AUTO
T491C225(1)025A(2)AUTO
T491A335(1)025A(2)AUTO
T491B335(1)025A(2)AUTO
T491C335(1)025A(2)AUTO
T491C475(1)025A(2)AUTO
T491B685(1)025A(2)AUTO
T491C685(1)025A(2)AUTO
T491D685(1)025A(2)AUTO
T491C106(1)025A(2)AUTO
T491D106(1)025A(2)AUTO
T491C156(1)025A(2)AUTO
T491D156(1)025A(2)AUTO
T491C226(1)025A(2)AUTO
T491D226(1)025A(2)AUTO
T491C336(1)025A(2)AUTO
T491D336(1)025A(2)AUTO
T491X336(1)025A(2)AUTO
T491D476(1)025A(2)AUTO
T491X476(1)025A(2)AUTO
T491X686(1)025A(2)AUTO
T491A104(1)035A(2)AUTO
T491A154(1)035A(2)AUTO
T491A224(1)035A(2)AUTO
T491A334(1)035A(2)AUTO
T491A474(1)035A(2)AUTO
T491B474(1)035A(2)AUTO
T491A684(1)035A(2)AUTO
T491B684(1)035A(2)AUTO
T491A105(1)035A(2)AUTO
T491B105(1)035A(2)AUTO
T491B155(1)035A(2)AUTO
T491C155(1)035A(2)AUTO
T491A225(1)035A(2)AUTO
T491B225(1)035A(2)AUTO
T491C225(1)035A(2)AUTO
T491B335(1)035A(2)AUTO
T491C335(1)035A(2)AUTO
T491B475(1)035A(2)AUTO
T491C475(1)035A(2)AUTO
T491D475(1)035A(2)AUTO
T491D685(1)035A(2)AUTO
T491V685(1)035A(2)AUTO
T491C106(1)035A(2)AUTO
T491D106(1)035A(2)AUTO
T491V106(1)035A(2)AUTO
(See below for
part options)
Rated
Voltage
Rated Cap
Case Code/
Case Size
KEMET Part Number
DC
Leakage
DF
ESR
Ripple
Current
°C
Maximum
Operating
Temp
(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 detail.
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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
8
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/Industrial Grade MnO 2
Table 1 – Ratings & Part Number Reference cont.
Maximum
Operating
Temp
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part Number
DC
Leakage
DF
ESR
Ripple
Current
VDC at 85°C
µF
KEMET/EIA
(See below for
part options)
µA +25°C
Maximum/5 Min
% at +25°C
120 Hz Maximum
Ω at 25°C
100 kHz Maximum
(mA) 100 kHz,
25°C
°C
35
35
35
35
35
35
35
35
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
15
15
22
22
33
33
47
47
0.1
0.15
0.15
0.22
0.22
0.33
0.47
0.47
0.68
0.68
1
1.5
1.5
2.2
3.3
4.7
6.8
6.8
10
22
D/7343-31
X/7343-43
D/7343-31
X/7343-43
D/7343-31
X/7343-43
X/7343-43
E/7360-38
A/3216-18
A/3216-18
B/3528-21
A/3216-18
B/3528-21
B/3528-21
B/3528-21
C/6032-28
B/3528-21
C/6032-28
C/6032-28
C/6032-28
D/7343-31
D/7343-31
D/7343-31
D/7343-31
D/7343-31
X/7343-43
X/7343-43
X/7343-43
µF
KEMET/EIA
5.3
5.3
7.7
7.7
11.6
11.6
16.5
16.5
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
1.7
2.4
3.4
3.4
5.0
11.0
µA +25°C
Maximum/5 Min
6
6
6
6
6
6
6
10
4
4
4
4
4
4
4
4
4
4
4
6
6
6
6
6
6
6
6
10
% at +25°C
120 Hz Maximum
0.8
0.9
0.7
0.7
0.6
0.6
0.6
0.5
20
15
16
18
14
10
9
7.2
8
6.4
4.8
4.4
3.5
2.5
1.6
1.2
0.8
0.8
0.7
0.6
Ω at 25°C
100 kHz Maximum
433
428
463
486
500
524
524
632
61
71
73
65
78
92
97
124
103
131
151
158
207
245
306
354
433
454
486
524
(mA) 100 kHz,
25°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
VDC at 85°C
T491D156(1)035A(2)AUTO
T491X156(1)035A(2)AUTO
T491D226(1)035A(2)AUTO
T491X226(1)035A(2)AUTO
T491D336(1)035A(2)AUTO
T491X336(1)035A(2)AUTO
T491X476(1)035A(2)AUTO
T491E476(1)035A(2)AUTO
T491A104(1)050A(2)AUTO
T491A154(1)050A(2)AUTO
T491B154(1)050A(2)AUTO
T491A224(1)050A(2)AUTO
T491B224(1)050A(2)AUTO
T491B334(1)050A(2)AUTO
T491B474(1)050A(2)AUTO
T491C474(1)050A(2)AUTO
T491B684(1)050A(2)AUTO
T491C684(1)050A(2)AUTO
T491C105(1)050A(2)AUTO
T491C155(1)050A(2)AUTO
T491D155(1)050A(2)AUTO
T491D225(1)050A(2)AUTO
T491D335(1)050A(2)AUTO
T491D475(1)050A(2)AUTO
T491D685(1)050A(2)AUTO
T491X685(1)050A(2)AUTO
T491X106(1)050A(2)AUTO
T491X226(1)050A(2)AUTO
(See below for
part options)
Rated
Voltage
Rated Cap
Case Code/
Case Size
KEMET Part Number
DC
Leakage
DF
ESR
Ripple
Current
°C
Maximum
Operating
Temp
(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 detail.
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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
9
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/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 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 Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
KEMET Series
and Case Code
EIA
Case Code
Maximum Power
Dissipation (Pmax)
mWatts at 25°C
with +20°C Rise
A
3216–18
75
B
C
D
X
E
S
T
U
V
T510X
T510E
3528–21
6032–28
7343–31
7343–43
7360–38
3216–12
3528–12
6032–15
7343–20
7343–43
7360–38
85
110
150
165
200
60
70
90
125
270
285
Using the Pmax of the device, the maximum allowable rms
ripple current or voltage may be determined.
I(max) = √Pmax/R
E(max) = Z √Pmax/R
I = rms ripple current (amperes)
E = rms ripple voltage (volts)
Pmax = maximum power dissipation (watts)
R = ESR at specified frequency (ohms)
Z = Impedance at specified frequency (ohms)
T2050_T491_AUTO • 12/6/2023
10
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/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
E1
7360–38
4.25
2.77
3.67
10.22
7.30
4.13
2.37
3.87
9.12
6.80
4.03
1.99
4.03
8.26
6.54
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
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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
11
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
12
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/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 *
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
KEMET
Industrial
Grade MnO2
Polarity
Indicator (+)
Picofarad
Code
KEMET
ID
Rated
Voltage
Date
Code*
* 301 = 1st week of 2023
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
13
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
14
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/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)
3.5 ±0.05
(0.138 ±0.002)
4.0 ±0.10
(0.157 ±0.004)
2.5
(0.098)
8.3
(0.327)
12 mm
Single (4 mm)
and Double
(8 mm)
8.2
(0.323)
10.25
(0.404)
5.5 ±0.05
(0.217 ±0.002)
8.0 ±0.10
(0.315 ±0.004)
4.6
(0.181)
12.3
(0.484)
E2 Minimum
F
P1
T2 Maximum W Maximum A0, B0 & K0
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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
15
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/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)
Typical Component Centerline
°
s
Tape
Maximum
Width (mm) Rotation (
8, 12
20
°
S)
Ao
Figure 3 – Maximum Lateral Movement
8 mm & 12 mm Tape
0.5 mm maximum
0.5 mm maximum
Figure 4 – Bending Radius
Embossed
Carrier
Punched
Carrier
R
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Bending
Radius
R
T2050_T491_AUTO • 12/6/2023
16
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
17
Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
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Tantalum Surface Mount Capacitors – Automotive Grade
T491 Automotive/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
YAGEO Corporation and its affi liates do not recommend the use of commercial or automotive grade products for high reliability applications or manned space fl ight.
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 • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2050_T491_AUTO • 12/6/2023
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