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Technical Data Sheet
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066JS402U025B — Technical Data Sheet

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— · MRO · MRO_GENERAL
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 anode_type: PLAIN FOIL, body_style: W/O MTG FACILITIES, AXIAL TERMINALS, body_length: 3.125 INCHES NOMINAL IN, body_diameter: 1.000 INCHES NOMINAL IN, terminal_length: 2.500 INCHES MINIMUM IN, reliability_indicator: NOT ESTABLISHED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5910-00-997-1266, 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
MRO→ MRO_GENERAL→ 066JS402U025B
NSN: 5910-00-997-1266
FSC: 5910
CAGE: 00853 — CORNELL-DUBILIER MARKETING INC (USA)
SPECIFICATIONS
anode_typePLAIN FOIL
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
body_length3.125 INCHES NOMINAL IN
body_diameter1.000 INCHES NOMINAL IN
terminal_length2.500 INCHES MINIMUM IN
reliability_indicatorNOT ESTABLISHED
electrical_polarizationPOLARIZED
case_insulation_materialPLASTIC
nonderated_operating_temp-20.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
terminal_surface_treatmentSOLDER
terminal_type_and_quantity2 UNINSULATED WIRE LEAD
tolerance_range_per_section-10.00 TO 75.00 PERCENT SINGLE SECTION
NSN5910-00-997-1266
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,ELECTROLYTIC TITLE COMPONENT PN 066JS402U025B MFR CAPACITOR,FIXED,ELECTR
KEY FEATURES
•
BODY STYLE: W/O MTG FACILITIES, AXIAL TERMINALS
•
CAPACITANCE VALUE PER SECTION: 4000.000 MICROFARADS SINGLE SECTION
•
DC LEAKAGE AT MAXIMUM OPERATING TEMP: 5.0 MILLIAMPERES
•
ANODE TYPE: PLAIN FOIL
•
TERMINAL LENGTH: 2.500 INCHES MINIMUM IN
•
SCHEMATIC DIAGRAM DESIGNATOR: ELECTRODE(S) GROUNDED TO CASE, W/GND TERMINAL
•
BODY LENGTH: 3.125 INCHES NOMINAL IN
•
TOLERANCE RANGE PER SECTION: -10.00 TO 75.00 PERCENT SINGLE SECTION
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
BODY STYLEW/O MTG FACILITIES, AXIAL TERMINALS
CAPACITANCE VALUE PER SECTION4000.000 MICROFARADS SINGLE SECTION
DC LEAKAGE AT MAXIMUM OPERATING TEMP5.0 MILLIAMPERES
ANODE TYPEPLAIN FOIL
TERMINAL LENGTH2.500 INCHES MINIMUM IN
SCHEMATIC DIAGRAM DESIGNATORELECTRODE(S) GROUNDED TO CASE, W/GND TERMINAL
BODY LENGTH3.125 INCHES NOMINAL IN
TOLERANCE RANGE PER SECTION-10.00 TO 75.00 PERCENT SINGLE SECTION
BODY DIAMETER1.000 INCHES NOMINAL IN
NONDERATED OPERATING TEMP-20.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
733537-3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
600163InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A810202InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
522246InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MILC5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1502-370734InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 066JS402U025B?
066JS402U025B is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 066JS402U025B?
There are 13 known substitutes for 066JS402U025B: 733537-3, 600163, A810202 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 066JS402U025B?
066JS402U025B is cataloged in the Federal Logistics Information System under NSN 5910-00-997-1266. This indicates validated use in U.S. government and defense supply chains.
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Last verified: October 2026