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Technical Data Sheet

MIL-C-81/4 — 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,VARIABLE,CERAMIC DIELE. Key specifications include body_style: ROTARY, inclosure_type: UNINCLOSED, overall_height: 0.310 INCHES NOMINAL IN, terminal_length: 0.100 INCHES NOMINAL IN, overall_diameter: 0.370 INCHES NOMINAL IN, terminal_thickness: 0.012 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-172-7989, 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 MIL-C-81/4
NSN: 5910-00-172-7989
FSC: 5910
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
body_styleROTARY
inclosure_typeUNINCLOSED
overall_height0.310 INCHES NOMINAL IN
terminal_length0.100 INCHES NOMINAL IN
overall_diameter0.370 INCHES NOMINAL IN
terminal_thickness0.012 INCHES NOMINAL IN
adjustment_device_torque1.000 INCH-OUNCES MINIMUM AND 6.000 INCH-OUNCES MAXIMUM IN
nonderated_operating_temp-55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
terminal_type_and_quantity3 SOLDER STUD
specification/standard_data81349-CV31B600 GOVERNMENT SPECIFICATION
capacitance_drift_in_picofarads0.05 SINGLE SECTION
capacitance_range_in_picofarads+7.0 TO 25.0 SINGLE SECTION
NSN5910-00-172-7989
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,CERAMIC DIELE TITLE COMPONENT PN MIL-C-81/4 MFR CAPACITOR,VARIABLE,CER
KEY FEATURES
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO DIAMETER: 0.370 INCHES NOMINAL IN
CAPACITANCE CHANGE IN PERCENT AT OPERATING TEMP FROM 25 DEG CELSIUS: -1.00 TO 6.50 MINIMUM AND -4.00/-1.00 MAXIMUM SINGLE SECTION
INCLOSURE TYPE: ENCASED
MOUNTING FACILITY TYPE AND QUANTITY: 2 TERMINAL
BODY STYLE: ROTARY
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY: 1 SLOTTED SCREW
NONDERATED VOLTAGE RATING AND TYPE: 350.0 DC CONTINUOUS SINGLE SECTION
CAPACITANCE DRIFT IN PICOFARADS: 0.50 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 (FLIS)
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO DIAMETER0.370 INCHES NOMINAL IN
CAPACITANCE CHANGE IN PERCENT AT OPERATING TEMP FROM 25 DEG CELSIUS-1.00 TO 6.50 MINIMUM AND -4.00/-1.00 MAXIMUM SINGLE SECTION
INCLOSURE TYPEENCASED
MOUNTING FACILITY TYPE AND QUANTITY2 TERMINAL
BODY STYLEROTARY
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY1 SLOTTED SCREW
NONDERATED VOLTAGE RATING AND TYPE350.0 DC CONTINUOUS SINGLE SECTION
CAPACITANCE DRIFT IN PICOFARADS0.50 SINGLE SECTION
OVERALL HEIGHT0.310 INCHES NOMINAL IN
CAPACITANCE RANGE IN PICOFARADS+8.0 TO 25.0 SINGLE SECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
CV31A180Interchangeable
interchangeable cross-reference
interchangeable
SCI53717002A5-5-18Interchangeable
interchangeable cross-reference
interchangeable
538-01192AInterchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-81/4Interchangeable
interchangeable cross-reference
interchangeable
DV11PS10Interchangeable
interchangeable cross-reference
interchangeable
1521-0000-001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-C-81/4?
MIL-C-81/4 is a CAPACITOR,VARIABLE,CERAMIC DIELE. It is classified as a MRO (MRO_GENERAL).
What parts can replace MIL-C-81/4?
There are 30 known substitutes for MIL-C-81/4: CV31A180, SCI53717002A5-5-18, 538-01192A and 27 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-C-81/4?
MIL-C-81/4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-172-7989. This indicates validated use in U.S. government and defense supply chains.
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