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Technical Data Sheet
PartsTable / MRO / CQ72B1FG405K3
CQ72B1FG405K3 ✓ 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, TERMINAL(S) ON ONE SURFACE, body_width: 1.250 INCHES NOMINAL IN, body_height: 3.875 INCHES NOMINAL IN, body_length: 3.750 INCHES NOMINAL IN, terminal_length: 0.750 INCHES MAXIMUM IN, features_provided: HERMETICALLY SEALED CASE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-01-031-5286, 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→ CQ72B1FG405K3
NSN: 5910-01-031-5286
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, TERMINAL(S) ON ONE SURFACE
body_width1.250 INCHES NOMINAL IN
body_height3.875 INCHES NOMINAL IN
body_length3.750 INCHES NOMINAL IN
terminal_length0.750 INCHES MAXIMUM IN
features_providedHERMETICALLY SEALED CASE
dielectric_materialPAPER AND PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER)
reliability_indicatorNOT ESTABLISHED
nonderated_operating_temp-55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
terminal_surface_treatmentSOLDER
terminal_type_and_quantity2 TAB, SOLDER LUG
specification/standard_data81349-MIL-C-19978/3D GOVERNMENT SPECIFICATION
NSN5910-01-031-5286
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PLASTIC DIELECTR TITLE COMPONENT PN CQ72B1FG405K3 MFR CAPACITOR,FIXED,PLASTI
KEY FEATURES
•
BODY STYLE: W/O MTG FACILITIES, TERMINAL(S) ON ONE SURFACE
•
BODY LENGTH: 3.750 INCHES NOMINAL IN
•
TOLERANCE RANGE PER SECTION: -10.00 TO 10.00 PERCENT SINGLE SECTION
•
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH: 2.000 INCHES NOMINAL IN
•
NONDERATED OPERATING TEMP: -55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
•
FEATURES PROVIDED: HERMETICALLY SEALED CASE
•
SCHEMATIC DIAGRAM DESIGNATOR: NO COMMON OR GROUNDED ELECTRODE(S)
•
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION: 1000.0 DC SINGLE SECTION
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)
BODY STYLEW/O MTG FACILITIES, TERMINAL(S) ON ONE SURFACE
BODY LENGTH3.750 INCHES NOMINAL IN
TOLERANCE RANGE PER SECTION-10.00 TO 10.00 PERCENT SINGLE SECTION
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH2.000 INCHES NOMINAL IN
NONDERATED OPERATING TEMP-55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
FEATURES PROVIDEDHERMETICALLY SEALED CASE
SCHEMATIC DIAGRAM DESIGNATORNO COMMON OR GROUNDED ELECTRODE(S)
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION1000.0 DC SINGLE SECTION
CAPACITANCE VALUE PER SECTION4.000 MICROFARADS SINGLE SECTION
TERMINAL LENGTH0.750 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
W6040Interchangeable
interchangeable cross-reference
interchangeable
1201687Interchangeable
interchangeable cross-reference
interchangeable
39-16Interchangeable
interchangeable cross-reference
interchangeable
B107.16MInterchangeable
interchangeable cross-reference
interchangeable
23Interchangeable
interchangeable cross-reference
interchangeable
CD12Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CQ72B1FG405K3?
CQ72B1FG405K3 is a CAPACITOR,FIXED,PLASTIC DIELECTR. It is classified as a MRO (MRO_GENERAL).
What parts can replace CQ72B1FG405K3?
There are 20 known substitutes for CQ72B1FG405K3: W6040, 1201687, 39-16 and 17 more. Substitute compatibility should be verified for your specific system.
Is CQ72B1FG405K3 still available?
CQ72B1FG405K3 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