PartsTable
Technical Data Sheet
PartsTable / MRO / 040-21-01
040-21-01 ✓ 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

The CAPACITOR,FIXED,ELECTROLYTIC is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include width: 32.0000 INCHES NOMINAL IN, length: 30.8900 INCHES NOMINAL IN, material: STEEL, anode_type: SOLID, body_style: W/O MTG FACILITIES, TERMINAL(S) ON ONE SURFACE, body_width: 0.690 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 5910-00-532-1040, 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→ 040-21-01
NSN: 5910-00-532-1040
FSC: 5910
CAGE: 037Z3 — DLA LAND AND MARITIME DBA ENGINEERING AND TECHNICAL SUPPORT DIV DOCUMENT STANDARDIZATION DIVISION (DRAWINGS) (USA)
SPECIFICATIONS
width32.0000 INCHES NOMINAL IN
length30.8900 INCHES NOMINAL IN
materialSTEEL
anode_typeSOLID
body_styleW/O MTG FACILITIES, TERMINAL(S) ON ONE SURFACE
body_width0.690 INCHES NOMINAL IN
body_height1.062 INCHES NOMINAL IN
body_length1.275 INCHES NOMINAL IN
hole_diameter0.2500 INCHES NOMINAL IN
special_features16 GAGE GALVANIZED SHEET METAL
features_providedHERMETICALLY SEALED CASE
securing_device_typeSPECIAL
NSN5910-00-532-1040
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,ELECTROLYTIC TITLE COMPONENT PN 040-21-01 MFR CAPACITOR,FIXED,ELECTR
KEY FEATURES
•
ELECTRICAL POLARIZATION: POLARIZED
•
DC LEAKAGE AT REFERENCE TEMP: 7.000 MICROAMPERES
•
TEST DATA DOCUMENT: 81349-MIL-C-3965 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.). AND 81349-MIL-C-3965/21 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.).
•
TERMINAL SURFACE TREATMENT: SOLDER
•
CAPACITIVE ELECTRODE MATERIAL: TANTALUM
•
POWER FACTOR AT REFERENCE TEMP IN PERCENT: 15.0000
•
TERMINAL TYPE AND QUANTITY: 2 TAB, SOLDER LUG
•
BODY WIDTH: 0.690 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)
ELECTRICAL POLARIZATIONPOLARIZED
DC LEAKAGE AT REFERENCE TEMP7.000 MICROAMPERES
TEST DATA DOCUMENT81349-MIL-C-3965 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.). AND 81349-MIL-C-3965/21 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.).
TERMINAL SURFACE TREATMENTSOLDER
CAPACITIVE ELECTRODE MATERIALTANTALUM
POWER FACTOR AT REFERENCE TEMP IN PERCENT15.0000
TERMINAL TYPE AND QUANTITY2 TAB, SOLDER LUG
BODY WIDTH0.690 INCHES NOMINAL IN
SCHEMATIC DIAGRAM DESIGNATORNO COMMON OR GROUNDED ELECTRODE(S)
RELIABILITY INDICATORNOT ESTABLISHED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
CL55BN351MPGInterchangeable
interchangeable cross-reference
interchangeable
202D357X0100A4Interchangeable
interchangeable cross-reference
interchangeable
04021Interchangeable
interchangeable cross-reference
interchangeable
MILC3965-21Interchangeable
interchangeable cross-reference
interchangeable
CL55BL401MPGInterchangeable
interchangeable cross-reference
interchangeable
AA441M100A5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 040-21-01?
040-21-01 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 040-21-01?
There are 25 known substitutes for 040-21-01: CL55BN351MPG, 202D357X0100A4, 04021 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 040-21-01?
040-21-01 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-532-1040. 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