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Technical Data Sheet
PartsTable / COMPONENT / 2B522
2B522 ✓ 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,PAPER DIELECTRIC. Key specifications include special_features: DISC, end_item_identification: TELETYPE AND FACSIMILE EQUIP. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3040-00-370-0944, 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
2B522
NSN: 3040-00-370-0944
FSC: 3040
CAGE: 56742 — CHARLES V CLARK CO. (USA)
SPECIFICATIONS
special_featuresDISC
end_item_identificationTELETYPE AND FACSIMILE EQUIP
NSN3040-00-370-0944
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PAPER DIELECTRIC TITLE COMPONENT PN 2B522 MFR CAPACITOR,FIXED,PAPER
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)
SPECIAL FEATURESDISC
END ITEM IDENTIFICATIONTELETYPE AND FACSIMILE EQUIP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
C5Interchangeable
interchangeable cross-reference
interchangeable
S4663Interchangeable
interchangeable cross-reference
interchangeable
32X10Interchangeable
interchangeable cross-reference
interchangeable
DMS 78002BInterchangeable
interchangeable cross-reference
interchangeable
150035Interchangeable
interchangeable cross-reference
interchangeable
WS286GInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2B522?
2B522 is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace 2B522?
There are 8 known substitutes for 2B522: C5, S4663, 32X10 and 5 more. Substitute compatibility should be verified for your specific system.
Is 2B522 still available?
2B522 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