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Technical Data Sheet
PartsTable / COMPONENT / 506978-12
506978-12 ✓ 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

CAPACITOR,FIXED,MICA DIELECTRIC. Key specifications include tube_type: DIODE, identifying_number: 85966 DRAWING NO., envelope_medium_type: VACUUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5960-01-025-2526, 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
506978-12
NSN: 5960-01-025-2526
FSC: 5960
CAGE: 1Y249 — AAR SUPPLY CHAIN, INC DBA AAR DEFENSE SYSTEMS & LOGISTICS (USA)
SPECIFICATIONS
tube_typeDIODE
identifying_number85966 DRAWING NO.
envelope_medium_typeVACUUM
NSN5960-01-025-2526
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN 506978-12 MFR CAPACITOR,FIXED,MICA D
KEY FEATURES
•
ENVELOPE MEDIUM TYPE: VACUUM
•
TUBE TYPE: DIODE
•
IDENTIFYING NUMBER: 85966 DRAWING NO.
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)
ENVELOPE MEDIUM TYPEVACUUM
TUBE TYPEDIODE
IDENTIFYING NUMBER85966 DRAWING NO.
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
85966Interchangeable
interchangeable cross-reference
interchangeable
124113-001Interchangeable
interchangeable cross-reference
interchangeable
C458-1092Interchangeable
interchangeable cross-reference
interchangeable
NC9581034Interchangeable
interchangeable cross-reference
interchangeable
6550NCM010153Interchangeable
interchangeable cross-reference
interchangeable
01-0132Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 506978-12?
506978-12 is a CAPACITOR,FIXED,MICA DIELECTRIC.
What parts can replace 506978-12?
There are 6 known substitutes for 506978-12: 85966, 124113-001, C458-1092 and 3 more. Substitute compatibility should be verified for your specific system.
Is 506978-12 still available?
506978-12 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