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Technical Data Sheet
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C-0121 — Technical Data Sheet

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— · 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 material: PLASTIC CASE, body_style: W/O MTG FACILITIES TERMINAL(S) ON ONE SURFACE, body_width: 0.420 INCHES MAXIMUM IN, bore_shape: STRAIGHT THROUGH BORE, body_height: 0.240 INCHES MAXIMUM IN, body_length: 0.490 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 3010-00-916-8753, 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→ C-0121
NSN: 3010-00-916-8753
FSC: 3010
CAGE: 29440 — W. M. BERG, INC. (USA)
SPECIFICATIONS
materialPLASTIC CASE
body_styleW/O MTG FACILITIES TERMINAL(S) ON ONE SURFACE
body_width0.420 INCHES MAXIMUM IN
bore_shapeSTRAIGHT THROUGH BORE
body_height0.240 INCHES MAXIMUM IN
body_length0.490 INCHES MAXIMUM IN
bore_length0.2500 INCHES NOMINAL BOTH ENDS IN
design_typeBELLOWS
bore_diameter0.1250 INCHES NOMINAL THROUGH BORE IN
overall_length1.875 INCHES NOMINAL IN
securing_methodTHREADED HOLE(S) BOTH ENDS
terminal_length1.250 INCHES MINIMUM IN
NSN3010-00-916-8753
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN C-0121 MFR CAPACITOR,FIXED,MICA D
KEY FEATURES
•
BORE DIAMETER: 0.1250 INCHES NOMINAL THROUGH BORE IN
•
THREADED HOLE QUANTITY: 1 BOTH ENDS
•
DESIGN TYPE: BELLOWS
•
BELLOWS MATERIAL: STEEL
•
FURNISHED ITEMS AND QUANTITY: SETCREW 2
•
BORE LENGTH: 0.2500 INCHES NOMINAL BOTH ENDS IN
•
FEATURES PROVIDED: EXPOSED COUPLING BOLT TYPE
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)
BORE DIAMETER0.1250 INCHES NOMINAL THROUGH BORE IN
THREADED HOLE QUANTITY1 BOTH ENDS
DESIGN TYPEBELLOWS
BELLOWS MATERIALSTEEL
OVERALL LENGTH1.875 INCHES NOMINAL IN
FURNISHED ITEMS AND QUANTITYSETCREW 2
BORE LENGTH0.2500 INCHES NOMINAL BOTH ENDS IN
FEATURES PROVIDEDEXPOSED COUPLING BOLT TYPE
BORE SHAPESTRAIGHT THROUGH BORE
OUTSIDE DIAMETER0.688 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
5574980Interchangeable
interchangeable cross-reference
interchangeable
CW541Interchangeable
interchangeable cross-reference
interchangeable
T91Interchangeable
interchangeable cross-reference
interchangeable
442/4/12574Interchangeable
interchangeable cross-reference
interchangeable
CD15FD620J03Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C-0121?
C-0121 is a CAPACITOR,FIXED,MICA DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace C-0121?
There are 5 known substitutes for C-0121: 5574980, CW541, T91 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C-0121?
C-0121 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3010-00-916-8753. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026