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 Ta
2
O
5
dielectric. A conductive organic
polymer replaces the traditionally used MnO
2
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 MnO
2
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
• 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
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2059_T550 • 2/14/2022
1
Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Ordering Information
T
Capacitor
Class
T=
Tantalum
550
Series
550 = Axial
Leaded
PHS
555 =
Surface
Mount PHS
B
107
M
025
A
Product
Level
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
Termination
Finish
T = 100% tin (Sn)-
plated
H = Tin/lead
(SnPb) solder
coated (5% Pb
minimum)
4251
Surge Option**
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
Case Capacitance Capacitance Rated Voltage
Size Code (pF)
Tolerance
(VDC)
B
C
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
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
Drawing
Number
-01
Dash
Number
See Part
Number
Table
K
Capacitance
Tolerance
K = ±10%
M = ±20%
A
Surge Current Testing
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
Insulation
S = Sleeved
U = Unsleeved
L
Lead
Length
L = 1.50
inches
(standard)
B
Product
Level
B = Standard reliability
T = High reliability
* Standard terminations for DLA part numbers is "H" (SnPb).
Performance Characteristics
Item
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
Performance Characteristics
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 • 2/14/2022
2
Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Qualification - T550
Test Performed
AC Ripple Life at 85˚C
85˚C Life
105˚C Life
Surge Voltage
Surge Current
Low Temperature Storage
Reverse Voltage
Visual and Mechanical
Examination (Internal and
External)
Terminal Strength
Resistance to Solvents
Resistance to Soldering Heat
Solderability
Shock and Vibration
Barometric Pressure
(Reduced)
Salt Atmosphere (Corrosion)
Moisture Resistance
Dielectric Withstanding
Voltage
Insulation Resistance
Temperature Stability
Frequency Scan
Method Reference
Reliability and Environmental Tests
MIL–PRF–39006
KEMET Standard
KEMET Standard
MIL–PRF–39006
MIL–PRF–39003
MIL–PRF–39006
KEMET Catalog
Test Conditions
85˚C, 40 kHz ripple current, 2,000 hours
85˚C, rated voltage, 2,000 hours
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%
+25 °C, 10 cycles (Option A), Option B available
−62˚C for 72 hours followed by 1 hour at 125˚C
1 V for 8 hours maximum at 25°C, 1 V for 2 hours maximum at 70°C
Physical, Mechanical and Process Tests
MIL–PRF–39006
MIL–PRF–39006
MIL–PRF–39006
MIL–PRF–39006
MIL–PRF–39003
MIL–STD–202,
Methods 213, 204
MIL–PRF–39006
MIL–PRF–39006
MIL–PRF–39006
MIL–PRF–39006
MIL–PRF–39003
Reference MIL–PRF–39006
KEMET Standard
Case dimensions, marking
Pull test and wire lead bend test
Immersion in (3) solvents
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
150,000 feet for 5 minutes, voltage applied for 1 minute
Subjected to fine mist of salt solution
65°C at 6 V
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
−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 • 2/14/2022
3
Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Qualification – DLA Approval Inspection – Only for T550
Inspection
Test Name
Shock (specified pulse)
1
Group I
Vibration, high frequency
1
Thermal shock
Salt atmosphere
Solderability
Terminal strength
Surge voltage
2
Group II
Moisture resistance
Dielectric withstanding voltage
Insulation resistance
Low temperature (storage)
Group III
Group IV
Group V
Group VI
Group VII
1
2
DLA Requirement
Paragraph
3.3.4
3.3.5
3.3.6
3.3.7
3.3.8
3.3.9
3.3.10
3.3.11
3.3.12
3.3.13
3.3.14
3.3.15
3.3.23
3.3.16
3.3.18
3.3.17
3.3.20
3.3.21
3.3.22
SS/Lot
6 per case size
12
Stability at low and high temperatures
Reverse voltage
Life at 85°C
AC ripple life at 85°C
Life at 105°C
Barometric pressure
Resistance to solvents
Resistance to soldering heat
13
12 per condition
102
8 per case size
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.
Product Level:
Inspection of product for delivery shall consist of:
B level
T level
Group A inspection specified in Drawing 13030
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 • 2/14/2022
4
Tantalum Polymer Capacitors – Hermetically Sealed
T550 Axial & T555 Surface Mount 105°C
Qualification - T555
Test Performed
105˚C Life
Surge Voltage
Visual and Mechanical
Examination (Internal and
External)
Terminal Strength
Resistance to Solvents
Resistance to Soldering Heat
Solderability
Shock and Vibration
Method Reference
Reliability and Environmental Tests
KEMET Standard
MIL-PRF-39006
Test Conditions
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%
Physical, Mechanical and Process Tests
MIL-PRF-39003
MIL-PRF-39006
MIL-PRF-39006
MIL-PRF-39006
MIL-PRF-39006
MIL-STD-202,
Methods 213, 204
Reference MIL-PRF-39006
Case dimensions, marking
Pull test and wire lead bend test
Immersion in (3) solvents
Immersed to within 0.05 inch of capacitor body
Depth of insertion in flux and solder to within 0.062 inch of welded joint
Shock Method 213, Condition I, 100 g peak, Vibration Method 204,
Condition D, 20 g peak
Electrical Characterization
Temperature Stability
–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 • 2/14/2022
5
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