Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com

Built Into Tomorrow

Benets

• 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

• Qualied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

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.

TantalumSurfaceMountCapacitors–MIL-PRF(CWRStyle)

T429 MIL-PRF-55365/11 (CWR29 Style)

Applications

Typicalapplicationsincludedecouplingandltering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specic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.

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)

KEMET Ordering Information

T 429 A 225 K 004 A H 4251 7280

Capacitor

Class

Series

Case

Size

Capacitance

Code(pF)

Capacitance

Tolerance

Rated

Voltage

(VDC)

FailureRate/Design

Termination

Finish

Surge

Packaging

(C-Spec)

T =

Tantalum

CWR29

Established

reliability

First two

digits

represent

signicant

gures.

Third digit

species

numberof

zeros.

J = ±5%

K = ±10%

M = ±20%

004 = 4

006 = 6

010 = 10

015 = 15

020 = 20

025 = 25

035 = 35

050 = 50

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)

C = Hot solder

dipped

H = Standard

solder-coated

(SnPb5%Pb

minimum)

B = Gold-

plated

K = Solder

fused

Blank = No

surge

4250=25°C

afterWeibull

4251=−55°C

and85°Cafter

Weibull

4252=−55°C

and85°Cbefore

Weibull

TLVL=Weibull

grade level "T"

Blank = 7" Reel

7280 = 13" Reel

7610 = Bulk bag

7640 = Bulk

plastic box

WAFL=Wae

pack

Ordering Information – Defense MIL-PRF-55365/11

CWR29 K H 225 K C D A

Capacitor Style

Rated

Voltage

(VDC)

Termination

Finish

Capacitance

Code

(pF)

Capacitance

Tolerance

Reliability Level

Case

Code

Surge Current Option

Per

MIL-

PRF-55365/11

C = 4

D=6

F = 10

H = 15

J = 20

K = 25

M = 35

N = 50

B = Gold-plated

C = Hot solder

dipped

H = Solder

plated

K = Solder

fused

First two digits

represent

signicant

gures.Third

digitspecies

numberof

zeros.

J = ±5%

K = ±10%

M = ±20%

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)

A=+25°CafterWeibull

B=−55°C+85°Cafter

Weibull

C=−55°C+85°Cbefore

Weibull

Z = None

* When T Level is ordered, no Surge Current Option is needed

Performance Characteristics

Item Performance Characteristics

Operating Temperature −55°Cto125°C

Rated Capacitance Range 0.1–330µFat120Hz/25°C

Capacitance Tolerance JTolerance(5%),KTolerance(10%),MTolerance(20%)

Rated Voltage Range 4–50V

DF(120Hz) RefertoPartNumberElectricalSpecicationTable��

ESR(100kHz) RefertoPartNumberElectricalSpecicationTable

Leakage Current ≤0.01CV(µA)atratedvoltageafter5minutes