© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2006_T492 10/14/2021
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
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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-55365/8(CWR11Style)
• TerminationoptionsB,C,H(S),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T492isapprovedtoMIL-PRF-55365/8(CWR11)
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CWR11productisaprecision-molded
device with compliant terminations and indelible laser
marking.ThisisthemilitaryversionoftheglobalIEC/EIA
standard, represented by KEMET's T491. Tape & Reel per EIA
481 are standard.
TantalumSurfaceMountCapacitors–MIL-PRF(CWRStyle)
T492 MIL-PRF-55365/8 (CWR11 Style)
Applications
Typicalapplicationsinclude��decouplingandlteringinmilitaryandaerospaceapplicationsrequiringCWR11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.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2006_T492 10/14/2021
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
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Tantalum Surface Mount Capacitors – MIL-PRF (CWR Style)
T492 MIL-PRF-55365/8 (CWR11 Style)
KEMET Ordering Information
T 492 D 156 K 020 A C 4251
Capacitor
Class
Series
Case
Size
Capacitance
Code(pF)
Capacitance
Tolerance
Rated
Voltage
(VDC)
Failure Rate/
Design
Termination Finish Surge(C-Spec)
Packaging
(C-Spec)
T =
Tantalum
CWR11
Established
reliability
A
B
C
D
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=(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 / S = Standard
solder coated
(SnPb5%Pb
minimum)
B=Gold-plated
K=Solderfused
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-55365/8
CWR11 M H 105 K B A
Capacitor Style
Rated
Voltage
(VDC)
Termination Finish CapacitanceCode(pF)
Capacitance
Tolerance
Reliability Level
Surge Current
Option
Per
MIL-PRF-55365/8
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
Blank = None
* When T Level is ordered, no Surge Current Option is needed