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MIL-J-641/2 — Technical Data Sheet

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— · 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 body_style: BUSHING MOUNTED LONG FRAME, body_width: 0.562 INCHES NOMINAL IN, terminal_type: TAB, SOLDER LUG, overall_height: 0.859 INCHES NOMINAL IN, overall_length: 3.515 INCHES NOMINAL IN, surface_treatment: TIN TERMINAL. This part is cataloged in the Federal Logistics Information System under NSN 5935-00-192-4884, 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
MIL-J-641/2
NSN: 5935-00-192-4884
FSC: 5935
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
body_styleBUSHING MOUNTED LONG FRAME
body_width0.562 INCHES NOMINAL IN
terminal_typeTAB, SOLDER LUG
overall_height0.859 INCHES NOMINAL IN
overall_length3.515 INCHES NOMINAL IN
surface_treatmentTIN TERMINAL
mounting_hole_diameter0.156 INCHES NOMINAL IN
mounting_bushing_length0.562 INCHES NOMINAL IN
accommodated_finger_typeTWO CONDUCTOR, ROUND TIP SINGLE FINGER
mounting_bushing_diameter0.448 INCHES NOMINAL IN
finger_accommodation_length1.015 INCHES NOMINAL SINGLE FINGER IN
specification/standard_data81349--641/2-1 GOVERNMENT SPECIFICATION
NSN5935-00-192-4884
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PAPER DIELECTRIC TITLE COMPONENT PN MIL-J-641/2 MFR CAPACITOR,FIXED,PAPER
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: 1 BUSHING AND 1 UNTHREADED HOLE(S)
•
MOUNTING BUSHING DIAMETER: 0.448 INCHES NOMINAL IN
•
BODY WIDTH: 0.562 INCHES NOMINAL IN
•
BODY STYLE: BUSHING MOUNTED LONG FRAME
•
FINGER ACCOMMODATION DIAMETER: 0.252 INCHES NOMINAL SINGLE FINGER IN
•
SPECIFICATION/STANDARD DATA: 81349-MIL-J-641 GOVERNMENT SPECIFICATION
•
TERMINAL TYPE: TAB, SOLDER LUG
•
JACK CONTACT ARRANGEMENT DESIGNATOR: J4-1B
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
MOUNTING FACILITY TYPE AND QUANTITY1 BUSHING AND 1 UNTHREADED HOLE(S)
MOUNTING BUSHING DIAMETER0.448 INCHES NOMINAL IN
BODY WIDTH0.562 INCHES NOMINAL IN
BODY STYLEBUSHING MOUNTED LONG FRAME
FINGER ACCOMMODATION DIAMETER0.252 INCHES NOMINAL SINGLE FINGER IN
SPECIFICATION/STANDARD DATA81349-MIL-J-641 GOVERNMENT SPECIFICATION
TERMINAL TYPETAB, SOLDER LUG
JACK CONTACT ARRANGEMENT DESIGNATORJ4-1B
ELECTRICAL INSULATION FEATUREINSULATED COMPLETELY
MOUNTING BUSHING LENGTH0.562 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
T331InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
M641/2-8InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
JJ086InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
226AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
JJ035InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
JK35InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-J-641/2?
MIL-J-641/2 is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace MIL-J-641/2?
There are 20 known substitutes for MIL-J-641/2: T331, M641/2-8, JJ086 and 17 more. Substitute compatibility should be verified for your specific system.
Is MIL-J-641/2 still available?
MIL-J-641/2 is currently cancelled.
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Last verified: October 2026