Tantalum Surface Mount Capacitors – MIL-PRF (CWR Style)
T429 MIL-PRF-55365/11 (CWR29 Style)
Overview
The KEMET T429 is approved to MIL-PRF-55365/11
(CWR29 Style) with Weibull failure rates of B level (0.1%
failures per 1,000 hours), C level (0.01% failures per
1,000 hours), D level (0.001% failures per 1,000 hours),
or T level (0.01% failures per 1,000 hours, Option C
surge current, DPA, radiographic inspection, 100% visual
inspection, DCL and ESR measurements within +3 standard
deviations, and Group C inspection). This CWR29 product is
a precision-molded device with compliant terminations and
indelible laser marking. Tape & Reel packaging per EIA 481 is
standard.
Benefits
• Established reliability options
• Tape & Reel standard packaging per EIA 481
• Symmetrical, compliant terminations
• Laser-marked case
• 100% surge current test available on all case sizes
• Qualified to MIL-PRF-55365/11 (CWR29 Style)
• Termination options B, C, H, and K
• Weibull failure options B, C, D, and T
• Exponential failure rates M, P, R, and S
• Voltage rating of 4 – 50 VDC
• Operating temperature range of −55°C to +125°C
Applications
Typical applications include decoupling and filtering in military and aerospace applications requiring CWR29 devices.
Environmental Compliance
• Halogen-free
• Epoxy compliant with UL94 V-0
• Molded Epoxy complies for outgassing testing under ASTM E 595.
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.
Built Into Tomorrow
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2003_T429 • 10/12/2021
1
Tantalum Surface Mount Capacitors – MIL-PRF (CWR Style)
T429 MIL-PRF-55365/11 (CWR29 Style)
KEMET
Ordering Information
T
Capacitor
Class
T=
Tantalum
429
Series
CWR29
Established
reliability
A
225
K
004
A
Failure Rate/Design
Weibull
A = Non-ER
B = (0.1%/1,000 hours)
C = (0.01%/1,000 hours)
D = (0.001%/1,000 hours)
T = T Level*(0.01%/1,000
hours)
Exponential
M = (1.0%/1,000 hours)
P = (0.1%/1,000 hours)
R = (0.01%/1,000 hours)
S = (0.001%/1,000 hours)
H
Termination
Finish
C = Hot solder
dipped
H = Standard
solder-coated
(SnPb 5% Pb
minimum)
B = Gold-
plated
K = Solder
fused
4251
Surge
7280
Packaging
(C-Spec)
Rated
Case Capacitance Capacitance
Voltage
Size
Code (pF)
Tolerance
(VDC)
A
B
C
D
E
F
G
H
X
First two J = ±5%
digits
K = ±10%
represent M = ±20%
significant
figures.
Third digit
specifies
number of
zeros.
004 = 4
006 = 6
010 = 10
015 = 15
020 = 20
025 = 25
035 = 35
050 = 50
Blank = No
Blank = 7" Reel
surge
7280 = 13" Reel
4250= 25°C
7610 = Bulk bag
after Weibull
7640 = Bulk
4251 = −55°C
plastic box
and 85°C after WAFL = Waffle
Weibull
pack
4252 = −55°C
and 85°C before
Weibull
TLVL= Weibull
grade level "T"
Ordering Information – Defense MIL-PRF-55365/11
CWR29
Capacitor Style
Per
MIL-
PRF-55365/11
K
Rated
Voltage
(VDC)
C=4
D = 6
F = 10
H = 15
J = 20
K = 25
M = 35
N = 50
H
Termination
Finish
225
Capacitance
Code
(pF)
K
Capacitance
Tolerance
C
Reliability Level
Weibull
A = non-ER
B = (0.1%/1,000 hours)
C = (0.01%/1,000 hours)
D = (0.001%/1,000 hours)
T = T Level* (0.01%/1,000 hours)
Exponential
M = (1.0%/1,000 hours)
P = (0.1%/1,000 hours)
R = (0.01%/1,000 hours)
S = (0.001%/1,000 hours)
D
Case
Code
A
B
C
D
E
F
G
H
X
A
Surge Current Option
A = +25°C after Weibull
B = −55°C +85°C after
Weibull
C = −55°C +85°C before
Weibull
Z = None
B = Gold-plated First two digits J = ±5%
C = Hot solder
represent
K = ±10%
dipped
significant
M = ±20%
H = Solder
figures. Third
plated
digit specifies
K = Solder
number of
fused
zeros.
* When T Level is ordered, no Surge Current Option is needed
Performance Characteristics
Item
Operating Temperature
Rated Capacitance Range
Capacitance Tolerance
Rated Voltage Range
DF (120 Hz)
ESR (100 kHz)
Leakage Current
−55°C to 125°C
0.1 – 330 µF at 120 Hz/25°C
J Tolerance (5%), K Tolerance (10%), M Tolerance (20%)
4 – 50 V
Refer to Part Number Electrical Specification Table
Refer to Part Number Electrical Specification Table
≤ 0.01 CV (µA) at rated voltage after 5 minutes
T2003_T429 • 10/12/2021
2
Performance Characteristics
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Tantalum Surface Mount Capacitors – MIL-PRF (CWR Style)
T429 MIL-PRF-55365/11 (CWR29 Style)
Qualification
Test
Endurance
Condition
Δ C/C
85°C at rated voltage, 2,000 hours
125°C at 2/3 rated voltage, 2,000 hours
DF
DCL
ESR
Δ C/C
DF
DCL
ESR
Δ C/C
MIL-STD-202, Method 107, Condition B, mounted,
−55°C to 125°C, 1,000 cycles
DF
DCL
ESR
+25°C
Extreme temperature exposure at a
succession of continuous steps at +25°C,
−55°C, +25°C, +85°C, +125°C, +25°C
Δ C/C
DF
DCL
25°C and 85°C, 1.32 x rated voltage 1,000 cycles
(125°C, 1.2 x rated voltage)
IL*
IL
IL
Δ C/C
DF
DCL
ESR
Δ C/C
DF
DCL
Characteristics
Within ±10% of initial value
Within initial limits
Within 1.25 x initial limit
Within initial limits
Within ±10% of initial value
Within initial limits
Within 1.25 x initial limit
Within initial limits
Within ±5% of initial value
Within initial limits
Within 1.25 x initial limit
Within initial limits
−55°C
±10%
IL
N/A
+85°C
±10%
1.5 x IL
10 x IL
+125°C
±15%
1.5 x IL
12 x IL
Storage Life
125°C at 0 volts, 2,000 hours
Thermal Shock
Temperature Stability
Within ±5% of initial value
Within initial limits
Within initial limits
Within initial limits
Within ±10% of initial value
Within initial limits
Within initial limits
Surge Voltage
Mechanical Shock/Vibration
Additional qualification
tests per MIL-PRF-55365/11
*IL = Initial limit
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
Please contact KEMET for more information.
Certification
MIL-PRF-55365/11
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2003_T429 • 10/12/2021
3
Tantalum Surface Mount Capacitors – MIL-PRF (CWR Style)
T429 MIL-PRF-55365/11 (CWR29 Style)
Electrical Characteristics
1,000
ESR vs. Frequency
100
T429C475/015_IMP
T429F336/015_IMP
T429H107/015_IMP
Capacitance vs. Frequency
T429C475/015
T429F336/015
100
T429H107/015
Impedance, ESR (Ohms)
10
T429F336/015_ESR
T429H107/015_ESR
1
Capacitance (µF)
T429C475/015_ESR
10
1
0.1
0.01
100
1,000
10,000
Frequency (Hz)
100,000
1,000,000
10,000,000
0.1
100
1,000
10,000
Frequency (Hz)
100,000
1,000,000
10,000,000
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2003_T429 • 10/12/2021
4
Tantalum Surface Mount Capacitors – MIL-PRF (CWR Style)
T429 MIL-PRF-55365/11 (CWR29 Style)
Dimensions – Millimeters (Inches)
Metric will govern
SIDE VIEW
L
H
P
P
Termination cutout
at KEMET's option,
either end
END VIEW
W
Solderable
Surfaces
BOTTOM VIEW
H
2
W
2
½ H
2
Min.
Case Size
KEMET
A
B
C
D
E
F
G
H
X
L ±0.38 (0.015)
2.54 (0.100)
3.81 (0.150)
5.08 (0.200)
3.81 (0.150)
5.08 (0.200)
5.59 (0.220)
6.73 (0.265)
7.24 (0.285)
6.93 (0.273)
Component
W ±0.38 (0.015) H ±0.38 (0.015)
1.27 (0.050)
1.27 (0.050)
1.27 (0.050)
2.54 (0.100)
2.54 (0.100)
3.43 (0.135)
2.79 (0.110)
3.81 (0.150)
5.41 (0.213)
1.27 (0.050)
1.27 (0.050)
1.27 (0.050)
1.27 (0.050)
1.27 (0.050)
1.78 (0.070)
2.79 (0.110)
2.79 (0.110)
2.74 (0.108)
P +0.25 (0.010),
-0.13 (0.005)
0.76 (0.030)
0.76 (0.030)
0.76 (0.030)
0.76 (0.030)
0.76 (0.030)
0.76 (0.030)
1.27 (0.050)
1.27 (0.050)
1.19 (0.047)
W
2
1.27 ±0.13
(0.050 ±0.005)
1.27 ±0.13
(0.050 ±0.005)
1.27 ±0.13
(0.050 ±0.005)
2.41 +0.13,−0.25
(0.095 +0.005,−0.010)
2.41 +0.13,−0.25
(0.095 +0.005,−0.010)
3.30 ±0.13
(0.130 ±0.005)
2.67 ±0.13
(0.105 ±0.005)
3.68 +0.013,−0.51
(0.145 +0.005,−0.020)
3.05 ±0.13
(0.120 ±0.005)
H
2
Minimum
0.76 (0.030)
0.76 (0.030)
0.76 (0.030)
0.76 (0.030)
0.76 (0.030)
1.02 (0.040)
1.52 (0.060)
1.52 (0.060)
1.22 (0.048)
Typical Weight
(mg)
39.91
68.73
146.5
264.12
421.63
173.63
266.42
349.01
590.44
Note: When solder coated terminations are required, add an additional 0.38 mm (0.015 inch) to the above tolerances for "L", "W", "H", "P" ,"W
2
" and "H
2
."
These weights are provided as reference. If exact weights are needed, please contact your KEMET sales representative.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2003_T429 • 10/12/2021
5
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