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PartsTable / COMPONENT / 539785-3
539785-3 ✓ 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 connector_name: PLUG, earphone_element_type: DYNAMIC, microphone_element_type: DYNAMIC, connector_controlling_agency: MILITARY SPECIFICATION, connector_identifying_number: U77-U TYPE NO., connector_to_junction_cord_length: 5.000 FEET FT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5965-00-775-6496, 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
539785-3
NSN: 5965-00-775-6496
FSC: 5965
CAGE: 05869 — RAYTHEON COMPANY DIV RMD STRATEGIC (USA)
SPECIFICATIONS
connector_namePLUG
earphone_quantity1
earphone_element_typeDYNAMIC
microphone_element_typeDYNAMIC
connector_controlling_agencyMILITARY SPECIFICATION
connector_identifying_numberU77-U TYPE NO.
connector_to_junction_cord_length5.000 FEET FT
NSN5965-00-775-6496
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PAPER DIELECTRIC TITLE COMPONENT PN 539785-3 MFR CAPACITOR,FIXED,PAPER
KEY FEATURES
•
CONNECTOR TO JUNCTION CORD LENGTH: 5.000 FEET FT
•
CONNECTOR CONTROLLING AGENCY: MILITARY SPECIFICATION
•
EARPHONE QUANTITY: 1
•
MICROPHONE ELEMENT TYPE: DYNAMIC
•
CONNECTOR NAME: PLUG
•
EARPHONE ELEMENT TYPE: DYNAMIC
•
CONNECTOR IDENTIFYING NUMBER: U77-U TYPE 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)
CONNECTOR TO JUNCTION CORD LENGTH5.000 FEET FT
CONNECTOR CONTROLLING AGENCYMILITARY SPECIFICATION
EARPHONE QUANTITY1
MICROPHONE ELEMENT TYPEDYNAMIC
CONNECTOR NAMEPLUG
EARPHONE ELEMENT TYPEDYNAMIC
CONNECTOR IDENTIFYING NUMBERU77-U TYPE NO.
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
4301Interchangeable
interchangeable cross-reference
interchangeable
122-5277671 ITEM 33Interchangeable
interchangeable cross-reference
interchangeable
9412350Interchangeable
interchangeable cross-reference
interchangeable
16-37Interchangeable
interchangeable cross-reference
interchangeable
62083Interchangeable
interchangeable cross-reference
interchangeable
5001-736Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 539785-3?
539785-3 is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace 539785-3?
There are 20 known substitutes for 539785-3: 4301, 122-5277671 ITEM 33, 9412350 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 539785-3?
539785-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5965-00-775-6496. 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