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Technical Data Sheet
PartsTable / COMPONENT / 4509C
4509C ✓ Verified by PartsTable
— · COMPONENT
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,PLASTIC DIELECTR. Key specifications include body_style: STRAIGHT SHAPE, EXTERNAL COUPLING, shell_type: SOLID, thread_class: 2A A, terminal_type: SOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING, overall_length: 1.500 INCHES MAXIMUM IN, shell_material: STEEL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5940-00-926-0042, 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
4509C
NSN: 5940-00-926-0042
FSC: 5940
CAGE: 81312 — WINCHESTER INTERCONNECT CORPORATION DBA WINCHESTER INTERCONNECT DIV WINCHESTER INTERCONNECT (USA)
SPECIFICATIONS
body_styleSTRAIGHT SHAPE, EXTERNAL COUPLING
shell_typeSOLID
thread_class2A A
terminal_typeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
overall_length1.500 INCHES MAXIMUM IN
shell_materialSTEEL
insert_materialPLASTIC TETRAFLUOROETHYLENE SINGLE MATING END
contact_materialCOPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING
thread_directionRIGHT-HAND
precious_materialGOLD
terminal_locationBACK SINGLE MATING END SINGLE CONTACT GROUPING
mating_end_quantity1
NSN5940-00-926-0042
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PLASTIC DIELECTR TITLE COMPONENT PN 4509C MFR CAPACITOR,FIXED,PLASTI
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
MS17122-16Interchangeable
interchangeable cross-reference
interchangeable
10-604-4Interchangeable
interchangeable cross-reference
interchangeable
5940PL0835669Interchangeable
interchangeable cross-reference
interchangeable
10132290Interchangeable
interchangeable cross-reference
interchangeable
950034-9Interchangeable
interchangeable cross-reference
interchangeable
1D6-1F-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4509C?
4509C is a CAPACITOR,FIXED,PLASTIC DIELECTR.
What parts can replace 4509C?
There are 31 known substitutes for 4509C: MS17122-16, 10-604-4, 5940PL0835669 and 28 more. Substitute compatibility should be verified for your specific system.
Is 4509C still available?
4509C is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026