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Technical Data Sheet
PartsTable / MRO / CQR39A1KB104K3R
CQR39A1KB104K3R ✓ 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: 0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN, body_diameter: 0.395 INCHES MINIMUM AND 0.415 INCHES MAXIMUM IN, terminal_length: 1.625 INCHES MINIMUM AND 2.625 INCHES MAXIMUM IN, features_provided: HERMETICALLY SEALED CASE, terminal_diameter: 0.031 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-01-300-7704, 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→ CQR39A1KB104K3R
NSN: 5910-01-300-7704
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_length0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN
body_diameter0.395 INCHES MINIMUM AND 0.415 INCHES MAXIMUM IN
terminal_length1.625 INCHES MINIMUM AND 2.625 INCHES MAXIMUM IN
features_providedHERMETICALLY SEALED CASE
terminal_diameter0.031 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
dielectric_materialPAPER AND PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER)
reliability_indicatorESTABLISHED
nonderated_operating_temp-65.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
terminal_surface_treatmentSOLDER
terminal_type_and_quantity2 UNINSULATED WIRE LEAD
specification/standard_data81349-MIL-C-19978/16 GOVERNMENT SPECIFICATION
NSN5910-01-300-7704
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PLASTIC DIELECTR TITLE COMPONENT PN CQR39A1KB104K3R MFR CAPACITOR,FIXED,PLASTI
KEY FEATURES
•
RELIABILITY FAILURE RATE LEVEL IN PERCENT: 0.010
•
SPECIFICATION/STANDARD DATA: 81349-MIL-C-19978/16 GOVERNMENT SPECIFICATION
•
INSULATION RESISTANCE AT MAXIMUM OPERATING TEMP: 250.0 MEGOHMS
•
INSULATION RESISTANCE AT REFERENCE TEMP: 25000.0 MEGOHMS
•
CAPACITANCE VALUE PER SECTION: 0.100 MICROFARADS SINGLE SECTION
•
BODY DIAMETER: 0.395 INCHES MINIMUM AND 0.415 INCHES MAXIMUM IN
•
FEATURES PROVIDED: HERMETICALLY SEALED CASE
•
BODY LENGTH: 0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM 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)
RELIABILITY FAILURE RATE LEVEL IN PERCENT0.010
SPECIFICATION/STANDARD DATA81349-MIL-C-19978/16 GOVERNMENT SPECIFICATION
INSULATION RESISTANCE AT MAXIMUM OPERATING TEMP250.0 MEGOHMS
INSULATION RESISTANCE AT REFERENCE TEMP25000.0 MEGOHMS
CAPACITANCE VALUE PER SECTION0.100 MICROFARADS SINGLE SECTION
BODY DIAMETER0.395 INCHES MINIMUM AND 0.415 INCHES MAXIMUM IN
FEATURES PROVIDEDHERMETICALLY SEALED CASE
BODY LENGTH0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN
TERMINAL LENGTH1.625 INCHES MINIMUM AND 2.625 INCHES MAXIMUM IN
DIELECTRIC MATERIALPAPER AND PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 34
TWUInterchangeable
interchangeable cross-reference
interchangeable
96P18493S4Interchangeable
interchangeable cross-reference
interchangeable
PG1RInterchangeable
interchangeable cross-reference
interchangeable
C233Interchangeable
interchangeable cross-reference
interchangeable
503AInterchangeable
interchangeable cross-reference
interchangeable
FS24NInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CQR39A1KB104K3R?
CQR39A1KB104K3R is a CAPACITOR,FIXED,PLASTIC DIELECTR. It is classified as a MRO (MRO_GENERAL).
What parts can replace CQR39A1KB104K3R?
There are 34 known substitutes for CQR39A1KB104K3R: TWU, 96P18493S4, PG1R and 31 more. Substitute compatibility should be verified for your specific system.
Is CQR39A1KB104K3R still available?
CQR39A1KB104K3R 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