Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Overview
The T550 axial leaded and T555 surface mount polymer
hermetically sealed (PHS) devices are tantalum capacitors
with a Ta anode and Ta2O5 dielectric. A conductive organic
polymer replaces the traditionally used MnO2 or wet
electrolyte as the cathode plate of the capacitor. This
results in very low ESR and improved capacitance retention
at high frequency and low temperature. The PHS device
also exhibits a benign failure mode, which eliminates the
case breach that can occur in wet tantalum capacitors.
Additionally, this part may be operated at voltages up to
80% of rated voltage, with equivalent or better reliability
than traditional MnO2 or wet tantalum capacitors operated
at 50% of rated voltage.
PHS capacitors also offer higher ripple current handling
capability and a lower ESR range than wet tantalums. With
reduced ESR and enhanced capacitance retention at higher
frequencies and low temperatures, these parts provide the
highest total capacitance and the most economical solution
for high power applications, all within an approximately 25%
lighter package than the equivalent wet tantalum capacitor.
Benefits
• Includes F-Tech anode which eliminates hidden defects in
the dielectric
• 100% simulated breakdown screening
• Maximum operating temperature of +105°C
• DLA drawing 13030 qualified parts available
• Polymer cathode technology
• Extremely low ESR
• High frequency and low temperature capacitance retention
• 100% constant voltage conditioning (240 hours)
• 100% surge current tested
• Volumetrically efficient
• Non-ignition failure mode
• Approximately 25% lighter than equivalent wet tantalum
• T550 case dimensions equivalent to
MIL–PRF–39006/22/25/30/31
• T555 surface mount design (see dimensions diagram)
Applications
Typical applications include high voltage power management, such as buck/boost converters, filtering, hold-up capacitors,
and other high ripple current applications.
Built Into Tomorrow
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T2059_T550 • 10/19/2020
1
Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Ordering Information
T
550
Capacitor
Class
Series
T=
Tantalum
B
107
M
025
A
T
4251
Product
Level
Termination
Finish
Surge Option**
A = N/A
B* = DLA
13030 standard
reliability
T* = DLA 13030
high reliability
E* = DLA
13030 "B" level
equivalent for T
termination
F* = DLA
13030 "T" level
equivalent for T
termination
T = 100% tin (Sn)plated
H = Tin/lead
(SnPb) solder
coated (5% Pb
minimum)
Case Capacitance Capacitance Rated Voltage
Size Code (pF)
Tolerance
(VDC)
550 = Axial
Leaded
PHS
555 =
Surface
Mount PHS
B
First two
digits
represent
significant
figures. Third
digit specifies
number of
zeros.
K = ±10%
M = ±20%
006 = 6.3
008 = 8
010 = 10
015 = 15
025 = 25
030 = 30
035 = 35
040 = 40
050 = 50
060 = 60
075= 75
100 = 100
Blank = 25°C ±5°C, 10 cycles,
after constant voltage
conditioning (KEMET standard)
4251 = 10 cycles, –55°C and
+85°C after constant voltage
conditioning
4252 = 10 cycles, –55°C and
+85°C before constant voltage
conditioning
Packaging**
Blank = Bulk/Sleeved
0100 = Bulk/
Unsleeved
7200 = Tape & Reel/
Sleeved
7293 = Ammo/Sleeved
7443 = Ammo/Sleeved
* Only available on select parts. Refer to part number table for details.
** Only for T550 (Surge options/Packaging)
Ordering Information – DLA
13030
-01
K
A
S
L
B
Drawing
Number
Dash
Number
Capacitance
Tolerance
Surge Current Testing
Insulation
Lead
Length
Product
Level
See Part
Number
Table
K = ±10%
M = ±20%
A = +25°C ±5°C, 10 cycles, after constant
voltage conditioning (KEMET standard)
B = –55°C, –5°C, +0°C and +85°C
±5°C after constant voltage conditioning.
C = –55°C, –5°C, +0°C and +85°C
±5°C before constant voltage conditioning.
S = Sleeved
U = Unsleeved
L = 1.50
inches
(standard)
B = Standard reliability
T = High reliability
* Standard terminations for DLA part numbers is "H" (SnPb).
Performance Characteristics
Item
Performance Characteristics
Operating Temperature
Rated Capacitance Range
Capacitance Tolerance
Rated Voltage Range
DF (120 Hz at 25°C)
ESR (100 kHz at 25°C)
Leakage Current
Packaging
−55°C to 105°C
20 – 680 μF at 120 Hz/25°C *
K tolerance (±10%), M tolerance (±20%)
6.3 – 100 V
Refer to Part Number Electrical Specification Table
Refer to Part Number Electrical Specification Table
Refer to Part Number Electrical Specification Table
(rated voltage up to +85°C and 78% of rated voltage applied at 105°C)
T550 according to MIL-PRF-39006, T555 bulk
KEMET does not recommend storage above 85°C.
* Additional case sizes and capacitance/voltage are under development.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2059_T550 • 10/19/2020
2
Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Qualification - T550
Test Performed
Method Reference
Test Conditions
Reliability and Environmental Tests
AC Ripple Life at 85˚C
MIL–PRF–39006
85˚C, 40 kHz ripple current, 2,000 hours
85˚C Life
KEMET Standard
85˚C, rated voltage, 2,000 hours
105˚C Life
KEMET Standard
105°C, 0.78 x rated voltage, 2,000 hours
Surge Voltage
MIL–PRF–39006
85˚C, 1.15 x rated voltage, 1,000 cycles, except delta cap shall be +10%/−20%
Surge Current
MIL–PRF–39003
+25 °C, 10 cycles (Option A), Option B available
Low Temperature Storage
MIL–PRF–39006
−62˚C for 72 hours followed by 1 hour at 125˚C
Reverse Voltage
KEMET Catalog
1 V for 8 hours maximum at 25°C, 1 V for 2 hours maximum at 70°C
Physical, Mechanical and Process Tests
Visual and Mechanical
Examination (Internal and
External)
MIL–PRF–39006
Case dimensions, marking
Terminal Strength
MIL–PRF–39006
Pull test and wire lead bend test
Resistance to Solvents
MIL–PRF–39006
Immersion in (3) solvents
Resistance to Soldering Heat
MIL–PRF–39006
Solderability
MIL–PRF–39003
Shock and Vibration
MIL–STD–202,
Methods 213, 204
Immersed to within 0.05 inch of capacitor body
Depth of insertion in flux and solder to within 0.125 inch ±0.025 inch (3.18
mm ± 0.64 mm) from end of case and from the point of “clean lead” emerging
from the seal eyelet.
Shock Method 213, Condition I, 100 G peak, Vibration Method 204,
Condition D, 20 G peak
Barometric Pressure
(Reduced)
MIL–PRF–39006
Salt Atmosphere (Corrosion)
MIL–PRF–39006
Subjected to fine mist of salt solution
Moisture Resistance
MIL–PRF–39006
65°C at 6 V
Dielectric Withstanding
Voltage
MIL–PRF–39006
Insulation Resistance
MIL–PRF–39003
150,000 feet for 5 minutes, voltage applied for 1 minute
2,000 VDC, 60 seconds, sleeving examined for evidence of breakdown
500 VDC, 1 minute, insulation resistance not less than 1,000 MΩ
Electrical Characterization
Temperature Stability
Frequency Scan
Reference MIL–PRF–39006
KEMET Standard
−55˚C to 105˚C
Impedance, ESR and capacitance versus frequency
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2059_T550 • 10/19/2020
3
Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Qualification – DLA Approval Inspection – Only for T550
Inspection
Test Name
DLA Requirement
Paragraph
Shock (specified pulse)1
Group I
Vibration, high frequency
SS/Lot
3.3.4
3.3.5
1
Thermal shock
3.3.6
Salt atmosphere
3.3.7
Solderability
3.3.8
Terminal strength
3.3.9
Surge voltage
3.3.10
2
6 per case size
Moisture resistance
3.3.11
Dielectric withstanding voltage
3.3.12
Insulation resistance
3.3.13
Low temperature (storage)
3.3.14
Stability at low and high temperatures
3.3.15
13
Reverse voltage
3.3.23
12 per condition
Group IV
Life at 85°C
3.3.16
102
Group V
AC ripple life at 85°C
3.3.18
8 per case size
Group II
Group III
Group VI
Group VII
Life at 105°C
3.3.17
Barometric pressure
3.3.20
Resistance to solvents
3.3.21
Resistance to soldering heat
3.3.22
12
40
6
No failures for mechanical shock or vibration tests shall be permitted.
Surge voltage change in capacitance limits are wider than those in some subsequent tests.
It may be necessary to perform initial measurements again, prior to the individual tests of Group II.
1
2
Product Level:
Inspection of product for delivery shall consist of:
B level
Group A inspection specified in Drawing 13030
T level
Group A and group B inspections specified in Drawing 13030
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2059_T550 • 10/19/2020
4
Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Qualification - T555
Test Performed
Method Reference
Test Conditions
Reliability and Environmental Tests
105˚C Life
KEMET Standard
Surge Voltage
105°C, 0.78 x rated voltage, 2,000 hours
85˚C, 1.15 x rated voltage, 1,000 cycles, except delta cap shall be +10%/–20%
MIL-PRF-39006
Physical, Mechanical and Process Tests
Visual and Mechanical
Examination (Internal and
External)
MIL-PRF-39003
Case dimensions, marking
Terminal Strength
MIL-PRF-39006
Pull test and wire lead bend test
Resistance to Solvents
MIL-PRF-39006
Immersion in (3) solvents
Resistance to Soldering Heat
MIL-PRF-39006
Immersed to within 0.05 inch of capacitor body
Solderability
MIL-PRF-39006
Depth of insertion in flux and solder to within 0.062 inch of welded joint
Shock and Vibration
MIL-STD-202,
Methods 213, 204
Shock Method 213, Condition I, 100 g peak, Vibration Method 204,
Condition D, 20 g peak
Temperature Stability
Reference MIL-PRF-39006
Electrical Characterization
–55˚C to 105˚C
Environmental Compliance
Epoxy compliant with UL 94 V–0.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2059_T550 • 10/19/2020
5
Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Electrical Characteristics
ESR vs. Frequency
ESR (Ohms)
10.0
+125°C
+50°C
0°C
−55°C
1.0
+85°C
+25°C
−25°C
−80°C
0.1
0.0
10
100
1,000
10,000
100,000
1,000,000
10,000,000
Frequency (Hz)
Capacitance vs. Frequency
120
Capacitance (µF)
100
80
60
40
+125°C
+50°C
0°C
−55°C
20
0
10
100
+85°C
+25°C
−25°C
−80°C
1,000
10,000
100,000
1,000,000
Frequency (Hz)
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2059_T550 • 10/19/2020
6
Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Dimensions – Inches (Millimeters)
T550
SIDE VIEW
0.094 (2.39) Maximum
END VIEW
1.50 ±0.250
(38.10 ±6.35)
J
D
+
M
L
Case Code
B
Case Size
Insulated Case
Uninsulated Case
MIL–PRF–39006
L
±0.031 (0.79)
D
+0.016 (0.41)
−0.015 (0.38)
M
±0.002 (0.05)
J
maximum
D
+0.016 (0.41)
−0.015 (0.38)
L
± 0.031 (0.79)
T2
0.650 (16.51)
0.279 (7.09)
0.025 (0.64)
0.822 (20.88)
0.289 (7.34)
0.686 (17.42)
Dimensions – Millimeters
T555
CATHODE (−) END VIEW
SIDE VIEW
BOTTOM VIEW
A
W
F
H
S
S
L
Weight (g)
Case Code
B
Surface mount
L ±0.5
W ±0.5
H ±0.5
F ±0.5
S ±0.3
Average
24.5
8.5
9.1
4.2
3.0
5.54
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2059_T550 • 10/19/2020
7
Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Table 1A – Ratings & Part Number Reference
Rated
Voltage
Rated
Capacitance
Case
Size
KEMET
Part Number
DLA
Drawing Number
DC
Leakage
DF
Maximum
ESR
Ripple
Current
(V) 85°C
µF
KEMET/EIA
(See below
for part options)
(See below
for part options)
µA at 25°C Maximum/
5 Minutes
% at 25°C
120 Hz Max
mΩ at 25°C
100 kHz
mArms at
85°C/40 kHz
6.3
8
8
10
10
10
15
15
15
25
25
25
30
30
35
40
40
40
40
50
50
50
50
50
50
60
60
60
60
75
75
75
100
100
140
220
680
100
180
560
70
120
390
50
100
100
40
68
330
100
100
120
120
25
47
100
100
120
120
20
39
100
100
75
75
82
25
25
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
T550B147(1)006A(3)
T550B227(1)008A(3)
T550B687(1)008A(3)
T550B107(1)010A(3)
T550B187(1)010A(3)
T550B567(1)010A(3)
T550B706(1)015A(3)
T550B127(1)015A(3)
T550B397(1)015A(3)
T550B506(1)025A(3)
T550B107(1)025(2)H
T550B107(1)025A(3)
T550B406(1)030A(3)
T550B686(1)030A(3)
T550B337(1)035A(3)
T550B107(1)040(2)(3)
T550B107(1)040(7)T
T550B127(1)040(2)(3)
T550B127(1)040(7)T
T550B256(1)050A(3)
T550B476(1)050A(3)
T550B107(1)050(2)(3)
T550B107(1)050(7)T
T550B127(1)050(2)(3)
T550B127(1)050(7)T
T550B206(1)060A(3)
T550B396(1)060A(3)
T550B107(1)060(2)(3)
T550B107(1)060(7)T
T550B756(1)075(2)(3)
T550B756(1)075(7)T
T550B826(1)075A(3)
T550B256(1)100(2)(3)
T550B256(1)100(7)T
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
13030-01(1)(4)(5)L(6)
N/A
N/A
N/A
N/A
13030-02(1)(4)(5)L(6)
N/A
13030-03(1)(4)(5)L(6)
N/A
N/A
N/A
13030-04(1)(4)(5)L(6)
N/A
13030-05(1)(4)(5)L(6)
N/A
N/A
N/A
13030-06(1)(4)(5)L(6)
N/A
13030-07(1)(4)(5)L(6)
N/A
N/A
13030-08(1)(4)(5)L(6)
N/A
6.3
13.2
40.8
7.5
13.5
42.0
7.9
13.5
43.9
9.4
18.8
18.8
9.0
15.3
86.6
30.0
30.0
36.0
36.0
9.4
17.6
37.5
37.5
45.0
45.0
9.0
17.6
45.0
45.0
42.2
42.2
57.6
18.8
18.8
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
5.0
10.0
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
5.0
5.0
5.0
5.0
5.0
5.0
120
120
90
140
110
90
140
110
90
170
190
190
170
140
180
150
150
120
120
170
150
130
130
90
90
200
160
100
100
110
110
220
190
190
1,510
1,510
1750
1400
1580
1750
1400
1580
1750
1275
1,200
1,200
1,275
1,400
1,240
1,350
1,350
1,510
1,510
1,275
1,350
1,450
1,450
1,750
1,750
1,175
1,310
1,660
1,660
1,580
1,580
1,800
1,200
1,200
(1) To complete KEMET part number, insert M for ±20% or K for ±10%. Designates capacitance tolerance.
(2) To complete KEMET part number, insert A = N/A, B = standard reliability, or T = high reliability.
(3) To complete KEMET part number, insert T = 100% matte tin (Sn)-plated, H = standard solder coated (SnPb 5% Pb minimum). Designates termination
finish.
(4) To complete the DLA PIN number, insert the surge current testing option, A = 25°C after voltage aging, B = −55°C +0°C and +85°C after voltage aging
or C = −55°C +0°C and +85°C before voltage aging.
(5) To complete the DLA PIN number, insert the insulation option. S = Sleeved, U = Unseleeved.
(6) To complete the DLA PIN number, insert the product level option. B = standard reliability or T = high reliability.
(7) To complete KEMET part number, insert E = DLA "B" level equivalent, or F = DLA "T" level equivalent. Designates product level
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. The 85°C 40 kHz ripple limit is based on the maximum allowed power at 85°C and the maximum expected ESR
at 40 kHz. For this calculation, the 100 kHz ESR limit is multiplied by a factor of 1.3 to account for the frequency dependence of ESR.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2059_T550 • 10/19/2020
8
Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Table 1B – Ratings & Part Number Reference
Rated
Voltage
Rated
Capacitance
Case Size
KEMET
Part Number
DC
Leakage
DF
Maximum
ESR
Ripple
Current
(V) 85°C
µF
KEMET/EIA
(See below for part options)
µA at 25°C Maximum/
5 Minutes
% at 25°C
120 Hz Max
mΩ at 25°C
100 kHz
mArms at
85°C/40 kHz
6.3
8
8
10
10
10
15
15
15
25
25
30
30
35
40
40
50
50
50
50
60
60
60
75
75
100
140
220
680
100
180
560
70
120
390
50
100
40
68
330
100
120
25
47
100
120
20
39
100
75
82
25
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
T555B147(1)006A(3)
T555B227(1)008A(3)
T555B687(1)008A(3)
T555B107(1)010A(3)
T555B187(1)010A(3)
T555B567(1)010A(3)
T555B706(1)015A(3)
T555B127(1)015A(3)
T555B397(1)015A(3)
T555B506(1)025A(3)
T555B107(1)025A(3)
T555B406(1)030A(3)
T555B686(1)030A(3)
T555B337(1)035A(3)
T555B107(1)040A(3)
T555B127(1)040A(3)
T555B256(1)050A(3)
T555B476(1)050A(3)
T555B107(1)050A(3)
T555B127(1)050A(3)
T555B206(1)060A(3)
T555B396(1)060A(3)
T555B107(1)060A(3)
T555B756(1)075A(3)
T555B826(1)075A(3)
T555B256(1)100A(3)
6.3
13.2
40.8
7.5
13.5
42.0
7.9
13.5
43.9
9.4
18.8
9.0
15.3
86.6
30.0
36.0
9.4
17.6
37.5
45.0
9.0
17.6
45.0
42.2
57.6
18.8
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
10.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
120
120
90
140
110
90
140
110
90
170
190
170
140
180
150
120
170
150
130
90
200
160
100
110
220
190
1,510
1,510
1,750
1,400
1,580
1,750
1,400
1,580
1,750
1,275
1,200
1,275
1,400
1,240
1,350
1,510
1,275
1,350
1,450
1,750
1,175
1,310
1,660
1,580
1,800
1,200
(1) To complete KEMET part number, insert M for ±20% or K for ±10%. Designates capacitance tolerance.
(3) To complete KEMET part number, insert T = 100% Matte Tin (Sn)-plated, H = Standard Solder coated (SnPb 5% Pb minimum). 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. The 85°C 40 kHz ripple limit is based on the maximum allowed power at 85°C and the maximum expected ESR
at 40 kHz. For this calculation, the 100 kHz ESR limit is multiplied by a factor of 1.3 to account for the frequency dependence of ESR.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2059_T550 • 10/19/2020
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Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Recommended Voltage Derating Guidelines
85°C to 105°C
VR
78% of VR
% Change in working DC
voltage with temperature
Recommended maximum
application voltage
(as % of rated voltage)
80% of VR
120%
100%
% Working Voltage
−55°C to 85°C
63% of VR
% Change in working DC voltage
with temperature
80%
80%
Recommended maximum application
voltage (as % of rated voltage)
60%
78%
63%
40%
20%
0%
−55
25
45
85
105
Temperature (°C)
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 that 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.
The maximum power dissipation by case size can be determined using the below left table. The maximum power dissipation
rating stated in the table must be reduced with increasing environmental operating temperatures. Refer to the below right
table for temperature compensation requirements.
Case Code
KEMET
MIL–PRF–39006/22/
25/30/31 Case size
B*
T2
Maximum Power
Dissipation (Pmax)
mWatts at 25°C
with +60°C Rise
715
* Applies to TH and SMD
Temperature Compensation Multipliers for
Maximum Power Dissipation (Pmax)
T ≤ 45°C
1.00
45°C < T ≤ 85°C
0.70
T = Environmental temperature
85°C < T ≤ 105°C
0.10
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)
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 • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2059_T550 • 10/19/2020
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Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Reverse Voltage
Solid tantalum polymer capacitors are polar devices and may be permanently damaged or destroyed if connected with
the wrong polarity. A small reverse voltage is permissible for time periods per the below table. KEMET can offer lower
capacitance in this voltage with higher reverse voltage capability. In addition, we continue to improve our capability for this
characteristic.
Temperature
Permissible Reverse Voltage
25°C
70°C
1 V for 8 hours maximum
1 V for 2 hours maximum
Table 2 – Land Dimensions/Courtyard
KEMET
Metric
Size
Code
Density Level A:
Maximum (Most) Land
Protrusion (mm)
Case
EIA
W
L
B
3528–21
4.73
4.86
S
V1
17.015 27.62
Density Level B:
Median (Nominal) Land
Protrusion (mm)
V2
W
L
10
4.61
4.46
S
V1
17.215 26.52
Density Level C:
Minimum (Least) Land
Protrusion (mm)
V2
W
L
9.5
4.51
4.08
S
V1
17.375 25.81
V2
9.24
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).
V1
L
L
W
W
V2
S
Grid Placement Courtyard
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T2059_T550 • 10/19/2020
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Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Soldering Process
Optimum Solder Wave Profile
Hand Soldering (Manual)*
Manual Solder Profile with Pre-heating
Solder Wave Peak
Temperature 260ºC
Entrance to Solder Wave
250
225
200
175
150
125
100
75
50
25
Preheat Zone
Exit from
Solder
Machine
80ºC
to 120ºC
Entrance
to Solder
Machine
Soldering
Hot Air Debridging
Free
Air
Cool
Bottom Side
Temperature
Range
Gradual Cooling
Entrance to
In-Line Cleaner
Exit from
In-Line Cleaner
(time in cleaner
may be less)
Delta T < = 120ºC
Immersion in
Cleaning
Vapor
150ºC
Maximum
Top Side
Nominal
0
1
2
3
Time (Minutes)
4
5
6
Gradual Preheat
60 – 120 Seconds
Recommend 2.5°C/second
Maximum 3 seconds
Degrees – Cº
Flux Zone
Exit from Solder Wave
(Time in Wave – 2 to 4 Seconds)
*T555 MUST be hand soldered only.
Mounting
WARNING: T555/T556 MUST BE HAND SOLDERED. THE USE OF STANDARD SMD PROCESSES FOR BOARD MOUNT WILL
CAUSE IRREVERSIBLE DAMAGE TO THIS PRODUCT.
T555 SMD
In hand-soldering tantalum polymer SMT capacitors, a manufacturer can utilize two (2) soldering methodologies that
include pre-heating or not pre-heating the capacitors. KEMET recommends utilizing a pre-heating technique. However,
due to the large temperature gradient between the capacitors and the tip of the soldering iron, take extreme caution in this
process. The thermal stresses from the large thermal gradients and the propensity of the operator touching the tip of the
soldering iron to the device can lead to mechanical and/or electrical damage.
When manually soldering, it is important the soldering process be carefully monitored and carried out so that the
temperature gradient falls within the recommended conditions above (profile).
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
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Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Mounting cont.
Process 1 (with preheating)
1) Utilize 1.0 mm thread eutectic solder with soldering flux in the core. Either a rosin-based or non-activated flux is
recommended.
2) The capacitors shall be pre-heated so that the temperature gradient between the devices and the tip of the soldering iron
is Delta T < = 120°C or below.
3) The temperature of the solder iron tip should not exceed 270°C.
4) The required amount of solder shall be melted in advance on the soldering tip.
5) After soldering, the capacitors shall be cooled gradually at room ambient temperature. Forced air cooling is not
recommended.
Process 2 (without preheating)
1) Soldering iron tip shall never directly touch the termination egress or the case body of the capacitors.
2) Lands are sufficiently pre-heated with a soldering iron tip before sliding the soldering iron tip to the terminal electrode of
the capacitor for soldering.
Reference
Condition
Case Size
All
Temperature of soldering iron
270°C
Wattage
20 W maximum
Shape of soldering iron
3 mm maximum
Soldering time with soldering iron
3 seconds maximum
T550 Through-Hole
All encased capacitors will pass the resistance to soldering heat test of MIL-STD-202, Method 210, Condition C. This test
simulates wave solder of topside board mount product. This demonstration of resistance to solder heat is in accordance
with what is believed to be the industry standard. More severe treatment must be considered reflective of an improper
soldering process. The above figure is a recommended solder wave profile for both axial and radial leaded solid tantalum
capacitors.
Additional mounting recommendations (SMD and Through-Hole):
In order to increase the board mount integrity of KEMET's Polymer Hermetic Sealed (SMD or TH version) relative to
mechanical shock and vibration, KEMET recommends the use of an adhesive between the component and the PCB. This
is defined in the Space Application Electronic Hardware Addendum to J-STD-001 (Requirements for Solder Electrical and
Electronic Assemblies.)
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
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T2059_T550 • 10/19/2020
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Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Construction
T550
Wire Lead (−)
(100% Sn/SnPb)
Brass Can
Tantalum Pellet
(See Detail for Layers)
Insulation
Sleeve
Solder
Anode Tube
Hermetic Seal System
(Glass Seal and Ring)
Solder
Hermetic Seal System
(Ring)
Brass Can
Tantalum Wire
Hermetic Seal System
(Glass Seal)
Wire Lead (+)
(100% Sn/SnPb)
Carbon
(Third Layer)
Ta2O5 Dielectric
(First Layer)
Tantalum Wire
Anode Tube
Detailed Cross Section
Wire Lead (+)
(100% Sn/SnPb)
Wire Lead (−)
(100% Sn/SnPb)
Silver Paint
(Fourth Layer)
Polymer
(Second Layer)
Tantalum
Solder
T555
Molded Epoxy
Case
Brass Can/
Insulation Sleeve
Hermetic Seal
System (Ring)
Tantalum
Pellet
Leadframe
(− Cathode)
770 Coating
90% Sn 10% Pb
Tantalum
Wire
Hermetic Seal System
(Glass Seal)
Anode
Tube
Molded Epoxy
Case
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
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Leadframe
(+ Anode)
770 Coating
90% Sn 10% Pb
T2059_T550 • 10/19/2020
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Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Capacitor Marking
T550
B Case
Series
KEMET ID
Capacitance
Tolerance,
Rated Voltage
(VDC)
Rated Capacitance
KT550
+
100µF
10% 60V +
2010AAAA
Polarity Marks
4 Digit Date Code*, Lot Code
* 1st & 2nd Digit = Year
3rd & 4th Digit = Week
T550 - Military Format
B Case
Polarity
Identifying Number
Nominal Capacitance
Rated Voltage
4 Digit Date Code*,
Lot Code
Manufacturer Symbol
* 1st & 2nd Digit = Year
3rd & 4th Digit = Week
T555
Series
KEMET
ID
Polarity Mark
Capacitance
Capacitance
Tolerance
Rated Voltage
4 Digit Date Code*,
Lot Code
* 1st & 2nd Digit = Year
3rd & 4th Digit = Week
Date Code
1st & 2nd
Digit = Year
16 = 2016
17 = 2017
18 = 2018
19 = 2019
20 = 2020
3rd & 4th Digit =
Week of the Year
01 = 1st week
52 = 52nd week
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
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T2059_T550 • 10/19/2020
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Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Storage
Tantalum hermetically sealed and SMD capacitors should be stored in normal working environments. While the capacitors
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 capacitors stock should be used promptly, preferably within three years of receipt.
Packaging Quantities
Case Size
Bulk
8.5" Reel*
Ammo Pack
C-Spec
Blank
7200
7443
B Through-hole
–
20 per tray
150
250
B Surface mount
–
100 per box
N/A
* For orders greater than 150 pieces, a 12" reel (500 pieces/reel) will be sent.
Weight
Case Size
Average Weight
(grams)
KEMET
EIA
B Through-hole
T2
3.63
B Surface mount
–
5.54
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T2059_T550 • 10/19/2020
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Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
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 indicted or that other
measures may not be required.
KEMET is a registered trademark of KEMET Electronics Corporation.
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