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Technical Data Sheet
PartsTable / MRO / CP53B1EF105K1
CP53B1EF105K1 ✓ 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: 1.000 INCHES NOMINAL IN, body_height: 0.875 INCHES NOMINAL IN, body_length: 1.812 INCHES NOMINAL IN, reset_method: MANUAL, bushing_length: 0.359 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 5925-00-121-9847, 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→ CP53B1EF105K1
NSN: 5925-00-121-9847
FSC: 5925
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_height0.875 INCHES NOMINAL IN
body_length1.812 INCHES NOMINAL IN
reset_methodMANUAL
pole_quantity1
bushing_length0.359 INCHES NOMINAL IN
terminal_length0.750 INCHES NOMINAL IN
actuator_functionTRIP-RESET
features_providedHERMETICALLY SEALED CASE
frequency_in_hertz400.0 SINGLE LOCATION
nominal_thread_size0.438 INCHES IN
NSN5925-00-121-9847
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PAPER DIELECTRIC TITLE COMPONENT PN CP53B1EF105K1 MFR CAPACITOR,FIXED,PAPER
KEY FEATURES
•
ACTUATOR FUNCTION: TRIP-RESET
•
TEST DATA DOCUMENT: 81349-MIL-C-5809 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
•
SWITCH VOLTAGE RATING AND TYPE IN VOLTS: 115.0 AC AND 28.0 DC
•
THREAD SERIES DESIGNATOR: UN
•
BODY LENGTH: 0.780 INCHES MAXIMUM IN
•
ACTUATOR POSITION DESIGNATION: AT POLE ONE
•
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT: 2.000 MINIMUM AT 200 PCT AND 20.000 MAXIMUM AT 200 PCT SINGLE LOCATION
•
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH: 0.593 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)
ACTUATOR FUNCTIONTRIP-RESET
TEST DATA DOCUMENT81349-MIL-C-5809 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
SWITCH VOLTAGE RATING AND TYPE IN VOLTS115.0 AC AND 28.0 DC
THREAD SERIES DESIGNATORUN
BODY LENGTH0.780 INCHES MAXIMUM IN
ACTUATOR POSITION DESIGNATIONAT POLE ONE
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT2.000 MINIMUM AT 200 PCT AND 20.000 MAXIMUM AT 200 PCT SINGLE LOCATION
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH0.593 INCHES NOMINAL IN
POLE QUANTITY1
MOUNTING FACILITY TYPE AND QUANTITY1 THREADED BUSHING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
AS26574Interchangeable
interchangeable cross-reference
interchangeable
6415835Interchangeable
interchangeable cross-reference
interchangeable
CP53B1FF105KInterchangeable
interchangeable cross-reference
interchangeable
P91700043Interchangeable
interchangeable cross-reference
interchangeable
CPBTS55Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS58091Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CP53B1EF105K1?
CP53B1EF105K1 is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace CP53B1EF105K1?
There are 28 known substitutes for CP53B1EF105K1: AS26574, 6415835, CP53B1FF105K and 25 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CP53B1EF105K1?
CP53B1EF105K1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5925-00-121-9847. 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