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Technical Data Sheet
CAP21 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

CAPACITOR,FIXED,MICA DIELECTRIC. Key specifications include color: BLACK, material: PLASTIC CASE, body_style: W/O MTG FACILITIES TERMINAL(S) ON ONE SURFACE, body_width: 0.890 INCHES MAXIMUM IN, body_height: 0.200 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN, body_length: 0.700 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5970-00-998-6118, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO MRO_GENERAL CAP21
NSN: 5970-00-998-6118
FSC: 5970
CAGE: 92194 — BELDEN, INC. (USA)
SPECIFICATIONS
colorBLACK
materialPLASTIC CASE
body_styleW/O MTG FACILITIES TERMINAL(S) ON ONE SURFACE
body_width0.890 INCHES MAXIMUM IN
body_height0.200 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
body_length0.700 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
flexibilitySEMIRIGID
temp_rating-55.0 CELSIUS DEGC
terminal_length1.000 INCHES MINIMUM IN
style_designatorBOOT-STRAIGHT
terminal_diameter0.040 INCHES NOMINAL IN
reliability_indicatorESTABLISHED
NSN5970-00-998-6118
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN CAP21 MFR CAPACITOR,FIXED,MICA D
KEY FEATURES
DIELECTRIC MATERIAL VOLTAGE RATING PER UNIT THICKNESS: 200.0 VOLTS PER MIL /0.001 INCH/ IN
COLOR: BLACK
MAIN BODY LARGE END INSIDE DIAMETER: 0.090 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN
FLEXIBILITY: SEMIRIGID
HEAT SHRINKAGE RATING IN PERCENT: 50.0
MATERIAL DOCUMENT AND CLASSIFICATION: RT-301, RAYCHEM CORP MFR REF SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
MAIN BODY WALL THICKNESS: 0.040 INCHES NOMINAL AFTER UNRESTRICTED RECOVERY IN
STYLE DESIGNATOR: BOOT-STRAIGHT
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
DIELECTRIC MATERIAL VOLTAGE RATING PER UNIT THICKNESS200.0 VOLTS PER MIL /0.001 INCH/ IN
COLORBLACK
MAIN BODY LARGE END INSIDE DIAMETER0.090 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN
FLEXIBILITYSEMIRIGID
HEAT SHRINKAGE RATING IN PERCENT50.0
MATERIAL DOCUMENT AND CLASSIFICATIONRT-301, RAYCHEM CORP MFR REF SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
MAIN BODY WALL THICKNESS0.040 INCHES NOMINAL AFTER UNRESTRICTED RECOVERY IN
STYLE DESIGNATORBOOT-STRAIGHT
LARGE END WALL THICKNESS OF MAIN BODY0.080 INCHES NOMINAL AFTER UNRESTRICTED RECOVERY IN
MATERIALPLASTIC POLYOLEFIN LOCATION NOT OTHERWISE SPECIFIED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
34587-7Interchangeable
interchangeable cross-reference
interchangeable
D34587-7Interchangeable
interchangeable cross-reference
interchangeable
9550117720Interchangeable
interchangeable cross-reference
interchangeable
101A031-3Interchangeable
interchangeable cross-reference
interchangeable
772142-3Interchangeable
interchangeable cross-reference
interchangeable
7721421Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CAP21?
CAP21 is a CAPACITOR,FIXED,MICA DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace CAP21?
There are 20 known substitutes for CAP21: 34587-7, D34587-7, 9550117720 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CAP21?
CAP21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5970-00-998-6118. This indicates validated use in U.S. government and defense supply chains.
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