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Technical Data Sheet
PartsTable / MRO / MILC25C3-4C1CP55B1EF
MILC25C3-4C1CP55B1EF ✓ 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,PAPER DIELECTRIC. Key specifications include body_style: W/MTG TABS/FLANGES TERMINAL(S) ON ONE SURFACE, body_width: 2.000 INCHES NOMINAL IN, body_height: 1.250 INCHES NOMINAL IN, body_length: 2.000 INCHES NOMINAL IN, features_provided: HERMETICALLY SEALED CASE, reliability_indicator: NOT ESTABLISHED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-189-5559, 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→ MILC25C3-4C1CP55B1EF
NSN: 5910-00-189-5559
FSC: 5910
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_width2.000 INCHES NOMINAL IN
body_height1.250 INCHES NOMINAL IN
body_length2.000 INCHES NOMINAL IN
features_providedHERMETICALLY SEALED CASE
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
tolerance_range_per_section-10.00 TO 10.00 PERCENT SINGLE SECTION
schematic_diagram_designatorNO COMMON OR GROUNDED ELECTRODE(S)
capacitance_value_per_section2.000 MICROFARADS SINGLE SECTION
NSN5910-00-189-5559
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PAPER DIELECTRIC TITLE COMPONENT PN MILC25C3-4C1CP55B1EF MFR CAPACITOR,FIXED,PAPER
KEY FEATURES
•
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION: 600.0 DC SINGLE SECTION
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.188 INCHES NOMINAL IN
•
FEATURES PROVIDED: HERMETICALLY SEALED CASE
•
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH: 2.375 INCHES NOMINAL IN
•
BODY HEIGHT: 1.250 INCHES NOMINAL IN
•
NONDERATED OPERATING TEMP: -55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
•
CAPACITANCE VALUE PER SECTION: 2.000 MICROFARADS SINGLE SECTION
•
BODY LENGTH: 2.000 INCHES NOMINAL 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)
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION600.0 DC SINGLE SECTION
UNTHREADED MOUNTING HOLE DIAMETER0.188 INCHES NOMINAL IN
FEATURES PROVIDEDHERMETICALLY SEALED CASE
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH2.375 INCHES NOMINAL IN
BODY HEIGHT1.250 INCHES NOMINAL IN
NONDERATED OPERATING TEMP-55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
CAPACITANCE VALUE PER SECTION2.000 MICROFARADS SINGLE SECTION
BODY LENGTH2.000 INCHES NOMINAL IN
SCHEMATIC DIAGRAM DESIGNATORNO COMMON OR GROUNDED ELECTRODE(S)
TOLERANCE RANGE PER SECTION-10.00 TO 10.00 PERCENT SINGLE SECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
640463Interchangeable
interchangeable cross-reference
interchangeable
519211Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-25/4Interchangeable
Same NIIN cross-reference
interchangeable
MILC25Interchangeable
Same NIIN cross-reference
interchangeable
CP55B1EF205K1Interchangeable
Same NIIN cross-reference
interchangeable
CP55B1EF205MInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MILC25C3-4C1CP55B1EF?
MILC25C3-4C1CP55B1EF is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace MILC25C3-4C1CP55B1EF?
There are 7 known substitutes for MILC25C3-4C1CP55B1EF: 640463, 519211, MIL-C-25/4 and 4 more. Substitute compatibility should be verified for your specific system.
Is MILC25C3-4C1CP55B1EF still available?
MILC25C3-4C1CP55B1EF 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