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Technical Data Sheet
PartsTable / MRO / MILC39018-3
MILC39018-3 ✓ 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

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: 3.625 INCHES MINIMUM AND 3.828 INCHES MAXIMUM IN, body_diameter: 0.875 INCHES NOMINAL IN, terminal_length: 2.250 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN, special_features: LOW FREQUENCY VIBRATION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-005-7050, 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→ MILC39018-3
NSN: 5910-00-005-7050
FSC: 5910
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
anode_typePLAIN FOIL
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
body_length3.625 INCHES MINIMUM AND 3.828 INCHES MAXIMUM IN
body_diameter0.875 INCHES NOMINAL IN
terminal_length2.250 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN
special_featuresLOW FREQUENCY VIBRATION
features_providedBURN IN
terminal_diameter0.032 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
special_test_featuresBURN-IN
electrical_polarizationPOLARIZED
end_item_identificationRADAR SET AN/SPS-40B FC
NSN5910-00-005-7050
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,ELECTROLYTIC TITLE COMPONENT PN MILC39018-3 MFR CAPACITOR,FIXED,ELECTR
KEY FEATURES
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
NONDERATED OPERATING TEMP: -55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
•
ANODE TYPE: PLAIN FOIL
•
BODY DIAMETER: 1.008 INCHES NOMINAL IN
•
ELECTRICAL POLARIZATION: POLARIZED
•
TOLERANCE RANGE PER SECTION: -10.00 TO 30.00 PERCENT SINGLE SECTION
•
BODY LENGTH: 1.777 INCHES NOMINAL IN
•
DC LEAKAGE AT MAXIMUM OPERATING TEMP: 367.0 MILLIAMPERES
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)
RELIABILITY INDICATORNOT ESTABLISHED
NONDERATED OPERATING TEMP-55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
ANODE TYPEPLAIN FOIL
BODY DIAMETER1.008 INCHES NOMINAL IN
ELECTRICAL POLARIZATIONPOLARIZED
TOLERANCE RANGE PER SECTION-10.00 TO 30.00 PERCENT SINGLE SECTION
BODY LENGTH1.777 INCHES NOMINAL IN
DC LEAKAGE AT MAXIMUM OPERATING TEMP367.0 MILLIAMPERES
TERMINAL LENGTH2.500 INCHES NOMINAL IN
SCHEMATIC DIAGRAM DESIGNATORELECTRODE(S) GROUNDED TO CASE, W/GND TERMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
MIL-C-39018/3Interchangeable
interchangeable cross-reference
interchangeable
M39018/03-0664Interchangeable
interchangeable cross-reference
interchangeable
M39018/03-1264MInterchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-39018/3Interchangeable
Same NIIN cross-reference
interchangeable
2501578-64Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MILC39018-3?
MILC39018-3 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace MILC39018-3?
There are 5 known substitutes for MILC39018-3: MIL-C-39018/3, M39018/03-0664, M39018/03-1264M and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MILC39018-3?
MILC39018-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-005-7050. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026