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CP54B1EF503K — CAPACITOR,FIXED,PAPER DIELECTRIC

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

CP54B1EF503K: CAPACITOR,FIXED,PAPER DIELECTRIC.

CAPACITOR,FIXED,PAPER DIELECTRIC. Key specifications include body_style: W/MTG TABS/FLANGES, TERMINAL(S) ON ONE SURFACE, body_width: 1.000 INCHES NOMINAL IN, body_height: 0.750 INCHES NOMINAL IN, body_length: 1.812 INCHES NOMINAL IN, features_provided: MOUNTING HARDWARE, reliability_indicator: NOT ESTABLISHED. This part is cataloged in the U.S.

Government catalog under NSN 5910-00-107-3987, 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→ CP54B1EF503K
NSN: 5910-00-107-3987
FSC: 5910 — Capacitors
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
body_styleW/MTG TABS/FLANGES, TERMINAL(S) ON ONE SURFACE
body_width1.000 INCHES NOMINAL IN
body_height0.750 INCHES NOMINAL IN
body_length1.812 INCHES NOMINAL IN
features_providedMOUNTING HARDWARE
reliability_indicatorNOT ESTABLISHED
terminal_type_and_quantity2 TAB, SOLDER LUG
schematic_diagram_designatorNO COMMON OR GROUNDED ELECTRODE(S)
unthreaded_mounting_hole_diameter0.187 INCHES NOMINAL IN
nonderated_continuous_voltage_rating_and_type_per_section600.0 DC SINGLE SECTION
distance_between_centerlines_of_mounting_facilities_parallel_to_body_length2.125 INCHES NOMINAL IN
NSN5910-00-107-3987
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PAPER DIELECTRIC TITLE COMPONENT PN CP54B1EF503K MFR CAPACITOR,FIXED,PAPER
KEY FEATURES
•
BODY STYLE: W/MTG TABS/FLANGES, TERMINAL(S) ON ONE SURFACE
•
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH: 2.125 INCHES NOMINAL IN
•
BODY WIDTH: 1.000 INCHES NOMINAL IN
•
BODY HEIGHT: 0.750 INCHES NOMINAL IN
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.187 INCHES NOMINAL IN
•
FEATURES PROVIDED: MOUNTING HARDWARE
•
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION: 600.0 DC SINGLE SECTION
•
SCHEMATIC DIAGRAM DESIGNATOR: NO COMMON OR GROUNDED ELECTRODE(S)
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
BODY STYLEW/MTG TABS/FLANGES, TERMINAL(S) ON ONE SURFACE
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH2.125 INCHES NOMINAL IN
BODY WIDTH1.000 INCHES NOMINAL IN
BODY HEIGHT0.750 INCHES NOMINAL IN
UNTHREADED MOUNTING HOLE DIAMETER0.187 INCHES NOMINAL IN
FEATURES PROVIDEDMOUNTING HARDWARE
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION600.0 DC SINGLE SECTION
SCHEMATIC DIAGRAM DESIGNATORNO COMMON OR GROUNDED ELECTRODE(S)
BODY LENGTH1.812 INCHES NOMINAL IN
RELIABILITY INDICATORNOT ESTABLISHED
SUBSTITUTES & CROSS-REFERENCES 4
CP54B1FF503KReference document
Same NSN cross-reference
Reference document — Secondary reference
CP54B1EF503K1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
JANC25Reference document
Same NSN cross-reference
Reference document — Secondary reference
MILC25Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is CP54B1EF503K?
CP54B1EF503K is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace CP54B1EF503K?
There are 4 known substitutes for CP54B1EF503K: CP54B1FF503K, CP54B1EF503K1, JANC25 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CP54B1EF503K?
CP54B1EF503K is cataloged in the U.S. Government catalog under NSN 5910-00-107-3987. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.