PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 577R554H21
577R554H21 ✓ Verified by PartsTable
— · COMPONENT
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 body_width: 0.110 INCHES NOMINAL IN, body_height: 0.230 INCHES NOMINAL IN, body_length: 0.210 INCHES NOMINAL IN, rating_method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING, inclosure_type: FULLY INCLOSED, inductance_type: FIXED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-824-3861, 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
577R554H21
NSN: 5950-00-824-3861
FSC: 5950
CAGE: 97942 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
body_width0.110 INCHES NOMINAL IN
body_height0.230 INCHES NOMINAL IN
body_length0.210 INCHES NOMINAL IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
inclosure_typeFULLY INCLOSED
inductance_typeFIXED
mounting_methodTERMINAL SINGLE GROUP
winding_quantity1 SINGLE COMPONENT
inductance_rating4.70 MICROHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING
reliability_indicatorNOT ESTABLISHED
winding_operating_current300.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
terminal_type_and_quantity2 WIRE LEAD
NSN5950-00-824-3861
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,ELECTROLYTIC TITLE COMPONENT PN 577R554H21 MFR CAPACITOR,FIXED,ELECTR
KEY FEATURES
•
MOUNTING METHOD: TERMINAL SINGLE GROUP
•
TERMINAL TYPE AND QUANTITY: 2 WIRE LEAD
•
BODY HEIGHT: 0.230 INCHES NOMINAL IN
•
WINDING QUANTITY: 1 SINGLE COMPONENT
•
INDUCTANCE RATING: 4.70 MICROHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING
•
DC RESISTANCE RATING IN OHMS: 1.800 SINGLE COMPONENT SINGLE WINDING
•
INCLOSURE TYPE: FULLY INCLOSED
•
INDUCTANCE TYPE: FIXED
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)
MOUNTING METHODTERMINAL SINGLE GROUP
TERMINAL TYPE AND QUANTITY2 WIRE LEAD
BODY HEIGHT0.230 INCHES NOMINAL IN
WINDING QUANTITY1 SINGLE COMPONENT
INDUCTANCE RATING4.70 MICROHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING
DC RESISTANCE RATING IN OHMS1.800 SINGLE COMPONENT SINGLE WINDING
INCLOSURE TYPEFULLY INCLOSED
INDUCTANCE TYPEFIXED
RATING METHODELECTRICAL SINGLE COMPONENT SINGLE WINDING
WINDING OPERATING CURRENT300.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
10881Interchangeable
interchangeable cross-reference
interchangeable
85691Interchangeable
interchangeable cross-reference
interchangeable
35F491BD9Interchangeable
interchangeable cross-reference
interchangeable
S414208Interchangeable
interchangeable cross-reference
interchangeable
SM-D-414208Interchangeable
interchangeable cross-reference
interchangeable
S-10881Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 577R554H21?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 577R554H21?
577R554H21 is a CAPACITOR,FIXED,ELECTROLYTIC.
What parts can replace 577R554H21?
There are 8 known substitutes for 577R554H21: 10881, 85691, 35F491BD9 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 577R554H21?
577R554H21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-824-3861. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 577R554H21

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026