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Technical Data Sheet
PartsTable / MRO / CQR39A1KF123K3M
CQR39A1KF123K3M ✓ 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,PLASTIC DIELECTR. Key specifications include body_style: W/O MTG FACILITIES, AXIAL TERMINALS, body_length: 0.938 INCHES NOMINAL IN, body_diameter: 0.463 INCHES NOMINAL IN, terminal_length: 1.625 INCHES MINIMUM IN, features_provided: HERMETICALLY SEALED CASE, terminal_diameter: 0.032 INCHES NOMINAL 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 5910-00-534-9769, 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→ CQR39A1KF123K3M
NSN: 5910-00-534-9769
FSC: 5910
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
body_length0.938 INCHES NOMINAL IN
body_diameter0.463 INCHES NOMINAL IN
terminal_length1.625 INCHES MINIMUM IN
features_providedHERMETICALLY SEALED CASE
terminal_diameter0.032 INCHES NOMINAL IN
dielectric_materialPAPER AND PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER)
reliability_indicatorESTABLISHED
case_insulation_materialPLASTIC
nonderated_operating_temp-65.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
terminal_type_and_quantity2 UNINSULATED WIRE LEAD
specification/standard_data81349-MIL-C-19978/16 GOVERNMENT SPECIFICATION
NSN5910-00-534-9769
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PLASTIC DIELECTR TITLE COMPONENT PN CQR39A1KF123K3M MFR CAPACITOR,FIXED,PLASTI
KEY FEATURES
•
TERMINAL DIAMETER: 0.032 INCHES NOMINAL IN
•
BODY DIAMETER: 0.463 INCHES NOMINAL IN
•
INTERNAL ELECTRICAL CONNECTION TYPE: EXTENDED FOIL
•
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION: 600.0 DC SINGLE SECTION
•
NONDERATED OPERATING TEMP: -65.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
•
TOLERANCE RANGE PER SECTION: -10.00 TO 10.00 PERCENT SINGLE SECTION
•
SCHEMATIC DIAGRAM DESIGNATOR: NO COMMON OR GROUNDED ELECTRODE(S)
•
TERMINAL LENGTH: 1.625 INCHES MINIMUM IN
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)
TERMINAL DIAMETER0.032 INCHES NOMINAL IN
BODY DIAMETER0.463 INCHES NOMINAL IN
INTERNAL ELECTRICAL CONNECTION TYPEEXTENDED FOIL
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION600.0 DC SINGLE SECTION
NONDERATED OPERATING TEMP-65.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
TOLERANCE RANGE PER SECTION-10.00 TO 10.00 PERCENT SINGLE SECTION
SCHEMATIC DIAGRAM DESIGNATORNO COMMON OR GROUNDED ELECTRODE(S)
TERMINAL LENGTH1.625 INCHES MINIMUM IN
INSULATION RESISTANCE AT MAXIMUM OPERATING TEMP250.0 MEGOHMS
FEATURES PROVIDEDHERMETICALLY SEALED CASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
MIL-C-19978/16Interchangeable
Same NIIN cross-reference
interchangeable
MIL-PRF-19978/16Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CQR39A1KF123K3M?
CQR39A1KF123K3M is a CAPACITOR,FIXED,PLASTIC DIELECTR. It is classified as a MRO (MRO_GENERAL).
What parts can replace CQR39A1KF123K3M?
There are 2 known substitutes for CQR39A1KF123K3M: MIL-C-19978/16, MIL-PRF-19978/16. Substitute compatibility should be verified for your specific system.
What is the NSN for CQR39A1KF123K3M?
CQR39A1KF123K3M is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-534-9769. 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: July 2026