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Technical Data Sheet
PartsTable / MRO / CV31B250
CV31B250 ✓ 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: ENCAPSULATED, overall_height: 0.310 INCHES NOMINAL IN, overall_diameter: 0.370 INCHES NOMINAL IN, adjustment_device_torque: 1.000 INCH-OUNCES MINIMUM AND 6.000 INCH-OUNCES MAXIMUM IN, nonderated_operating_temp: -55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-441-7749, 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→ CV31B250
NSN: 5910-00-441-7749
FSC: 5910
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
body_styleROTARY
inclosure_typeENCAPSULATED
overall_height0.310 INCHES NOMINAL IN
overall_diameter0.370 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_quantity2 PIN
capacitance_drift_in_picofarads0.50 SINGLE SECTION
capacitance_range_in_picofarads+7.0 TO 25.0 SINGLE SECTION
nonderated_voltage_rating_and_type350.0 DC CONTINUOUS SINGLE SECTION
mounting_facility_type_and_quantity2 TERMINAL
adjustment_device_drive_type_and_quantity1 SLOTTED SCREW
NSN5910-00-441-7749
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,CERAMIC DIELE TITLE COMPONENT PN CV31B250 MFR CAPACITOR,VARIABLE,CER
KEY FEATURES
•
INSULATION DC RESISTANCE AT 25 DEG CELSIUS: 10.0 GIGOHMS
•
INCLOSURE TYPE: ENCAPSULATED
•
MOUNTING FACILITY TYPE AND QUANTITY: 2 TERMINAL
•
DISSIPATION FACTOR AT 25 DEG CELSIUS IN PERCENT: 0.2
•
ADJUSTMENT DEVICE TORQUE: 1.000 INCH-OUNCES MINIMUM AND 6.000 INCH-OUNCES MAXIMUM IN
•
NONDERATED OPERATING TEMP: -55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
•
CAPACITANCE CHANGE IN PERCENT AT OPERATING TEMP FROM 25 DEG CELSIUS: -1.00 TO 3.50 MINIMUM AND -2.50/-0.50 MAXIMUM SINGLE SECTION
•
TEST DATA DOCUMENT: 81349-MIL-C-81 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
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)
INSULATION DC RESISTANCE AT 25 DEG CELSIUS10.0 GIGOHMS
INCLOSURE TYPEENCAPSULATED
MOUNTING FACILITY TYPE AND QUANTITY2 TERMINAL
DISSIPATION FACTOR AT 25 DEG CELSIUS IN PERCENT0.2
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
CAPACITANCE CHANGE IN PERCENT AT OPERATING TEMP FROM 25 DEG CELSIUS-1.00 TO 3.50 MINIMUM AND -2.50/-0.50 MAXIMUM SINGLE SECTION
TEST DATA DOCUMENT81349-MIL-C-81 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY1 SLOTTED SCREW
NONDERATED VOLTAGE RATING AND TYPE350.0 DC CONTINUOUS SINGLE SECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 37
10STRIK022-8-25PFN470Interchangeable
interchangeable cross-reference
interchangeable
917-0004-060Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-81/4Interchangeable
interchangeable cross-reference
interchangeable
CV31A180Interchangeable
interchangeable cross-reference
interchangeable
SCI53717002A5-5-18Interchangeable
interchangeable cross-reference
interchangeable
538-01192AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CV31B250?
CV31B250 is a CAPACITOR,VARIABLE,CERAMIC DIELE. It is classified as a MRO (MRO_GENERAL).
What parts can replace CV31B250?
There are 37 known substitutes for CV31B250: 10STRIK022-8-25PFN470, 917-0004-060, MIL-PRF-81/4 and 34 more. Substitute compatibility should be verified for your specific system.
Is CV31B250 still available?
CV31B250 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026