PartsTable
Technical Data Sheet
921681-1 ✓ 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 anode_type: SOLID, body_style: W/O MTG FACILITIES, AXIAL TERMINALS, body_length: 0.403 INCHES MAXIMUM IN, body_diameter: 0.115 INCHES MAXIMUM IN, terminal_length: 1.750 INCHES MAXIMUM IN, terminal_diameter: 0.020 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 5910-01-058-4645, 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 921681-1
NSN: 5910-01-058-4645
FSC: 5910
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
anode_typeSOLID
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
body_length0.403 INCHES MAXIMUM IN
body_diameter0.115 INCHES MAXIMUM IN
terminal_length1.750 INCHES MAXIMUM IN
terminal_diameter0.020 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
electrical_polarizationPOLARIZED
case_insulation_materialPLASTIC
nonderated_operating_temp-55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
terminal_surface_treatmentSOLDER
terminal_type_and_quantity2 UNINSULATED WIRE LEAD
NSN5910-01-058-4645
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,ELECTROLYTIC TITLE COMPONENT PN 921681-1 MFR CAPACITOR,FIXED,ELECTR
KEY FEATURES
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION: 6.0 DC SINGLE SECTION
RELIABILITY INDICATOR: NOT ESTABLISHED
ANODE TYPE: SOLID
TERMINAL TYPE AND QUANTITY: 2 UNINSULATED WIRE LEAD
CASE INSULATION MATERIAL: PLASTIC
BODY DIAMETER: 0.115 INCHES MAXIMUM IN
SCHEMATIC DIAGRAM DESIGNATOR: NO COMMON OR GROUNDED ELECTRODE(S)
TERMINAL LENGTH: 1.750 INCHES MAXIMUM 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 SECTION6.0 DC SINGLE SECTION
RELIABILITY INDICATORNOT ESTABLISHED
ANODE TYPESOLID
TERMINAL TYPE AND QUANTITY2 UNINSULATED WIRE LEAD
CASE INSULATION MATERIALPLASTIC
BODY DIAMETER0.115 INCHES MAXIMUM IN
SCHEMATIC DIAGRAM DESIGNATORNO COMMON OR GROUNDED ELECTRODE(S)
TERMINAL LENGTH1.750 INCHES MAXIMUM IN
TERMINAL SURFACE TREATMENTSOLDER
CAPACITANCE VALUE PER SECTION47.000 MICROFARADS SINGLE SECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
31020Interchangeable
interchangeable cross-reference
interchangeable
AA55497-009Interchangeable
interchangeable cross-reference
interchangeable
A-A-55497Interchangeable
interchangeable cross-reference
interchangeable
31457Interchangeable
interchangeable cross-reference
interchangeable
3050-0399Interchangeable
interchangeable cross-reference
interchangeable
B94.11MInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 921681-1?
921681-1 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 921681-1?
There are 18 known substitutes for 921681-1: 31020, AA55497-009, A-A-55497 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 921681-1?
921681-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-01-058-4645. This indicates validated use in U.S. government and defense supply chains.
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