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Technical Data Sheet
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312A90 — Technical Data Sheet

✓ Verified by PartsTable
— · 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

CAPACITOR,FIXED,PAPER DIELECTRIC. Key specifications include body_style: W/MTG BRACKET, TERMINAL(S) ON ONE END, body_length: 1.812 INCHES NOMINAL IN, body_diameter: 0.750 INCHES NOMINAL IN, features_provided: MOUNTING HARDWARE, reliability_indicator: NOT ESTABLISHED, nonderated_operating_temp: -55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-281-0796, 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→ 312A90
NSN: 5910-00-281-0796
FSC: 5910
CAGE: 44940 — CUMMINS POWER GENERATION INC. (USA)
SPECIFICATIONS
body_styleW/MTG BRACKET, TERMINAL(S) ON ONE END
body_length1.812 INCHES NOMINAL IN
body_diameter0.750 INCHES NOMINAL IN
features_providedMOUNTING HARDWARE
reliability_indicatorNOT ESTABLISHED
nonderated_operating_temp-55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
terminal_type_and_quantity1 THREADED HOLE
tolerance_range_per_section-10.00 TO 10.00 PERCENT SINGLE SECTION
schematic_diagram_designatorELECTRODE(S) GROUNDED TO CASE
capacitance_value_per_section0.500 MICROFARADS SINGLE SECTION
unthreaded_mounting_hole_diameter0.187 INCHES NOMINAL IN
mounting_facility_type_and_quantity2 UNTHREADED MOUNTING HOLES
NSN5910-00-281-0796
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PAPER DIELECTRIC TITLE COMPONENT PN 312A90 MFR CAPACITOR,FIXED,PAPER
KEY FEATURES
•
SCHEMATIC DIAGRAM DESIGNATOR: ELECTRODE(S) GROUNDED TO CASE
•
CAPACITANCE VALUE PER SECTION: 0.500 MICROFARADS SINGLE SECTION
•
BODY LENGTH: 1.812 INCHES NOMINAL IN
•
NONDERATED OPERATING TEMP: -55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.187 INCHES NOMINAL IN
•
FEATURES PROVIDED: MOUNTING HARDWARE
•
MOUNTING FACILITY TYPE AND QUANTITY: 2 UNTHREADED MOUNTING HOLES
•
BODY DIAMETER: 0.750 INCHES NOMINAL IN
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)
SCHEMATIC DIAGRAM DESIGNATORELECTRODE(S) GROUNDED TO CASE
CAPACITANCE VALUE PER SECTION0.500 MICROFARADS SINGLE SECTION
BODY LENGTH1.812 INCHES NOMINAL IN
NONDERATED OPERATING TEMP-55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
UNTHREADED MOUNTING HOLE DIAMETER0.187 INCHES NOMINAL IN
FEATURES PROVIDEDMOUNTING HARDWARE
MOUNTING FACILITY TYPE AND QUANTITY2 UNTHREADED MOUNTING HOLES
BODY DIAMETER0.750 INCHES NOMINAL IN
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION200.0 DC SINGLE SECTION
TOLERANCE RANGE PER SECTION-10.00 TO 10.00 PERCENT SINGLE SECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
19411Interchangeable
interchangeable cross-reference
interchangeable
41288 PIECE 7Interchangeable
interchangeable cross-reference
interchangeable
MFY1102SInterchangeable
interchangeable cross-reference
interchangeable
2920PL0649739Interchangeable
interchangeable cross-reference
interchangeable
3191419-102-101Interchangeable
interchangeable cross-reference
interchangeable
200-60Interchangeable
Capacitor,fixed,paper Dielectric
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 312A90?
312A90 is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 312A90?
There are 6 known substitutes for 312A90: 19411, 41288 PIECE 7, MFY1102S and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 312A90?
312A90 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-281-0796. This indicates validated use in U.S. government and defense supply chains.
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Last verified: September 2026