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PartsTable / MRO / JMC1951
JMC1951 ✓ 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,AIR DIELECTRI. Key specifications include inclosure_type: UNINCLOSED, overall_length: 1.937 INCHES NOMINAL IN, tuning_characteristic: STRAIGHT LINE CAPACITY SINGLE SECTION, terminal_type_and_quantity: 2 TAB, SOLDER LUG, capacitance_range_in_picofarads: +0.8 TO 35.0 SINGLE SECTION, mounting_facility_type_and_quantity: 1 THREADED BUSHING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-865-4510, 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→ JMC1951
NSN: 5910-00-865-4510
FSC: 5910
CAGE: 91293 — KNOWLES CAZENOVIA, INC. DIV JOHANSON MANUFACTURING (USA)
SPECIFICATIONS
inclosure_typeUNINCLOSED
overall_length1.937 INCHES NOMINAL IN
tuning_characteristicSTRAIGHT LINE CAPACITY SINGLE SECTION
terminal_type_and_quantity2 TAB, SOLDER LUG
capacitance_range_in_picofarads+0.8 TO 35.0 SINGLE SECTION
mounting_facility_type_and_quantity1 THREADED BUSHING
adjustment_device_drive_type_and_quantity1 SLOTTED SCREW
NSN5910-00-865-4510
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,AIR DIELECTRI TITLE COMPONENT PN JMC1951 MFR CAPACITOR,VARIABLE,AIR
KEY FEATURES
•
TUNING CHARACTERISTIC: STRAIGHT LINE CAPACITY SINGLE SECTION
•
TERMINAL TYPE AND QUANTITY: 2 TAB, SOLDER LUG
•
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY: 1 SLOTTED SCREW
•
INCLOSURE TYPE: UNINCLOSED
•
CAPACITANCE RANGE IN PICOFARADS: +0.8 TO 35.0 SINGLE SECTION
•
MOUNTING FACILITY TYPE AND QUANTITY: 1 THREADED BUSHING
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)
TUNING CHARACTERISTICSTRAIGHT LINE CAPACITY SINGLE SECTION
TERMINAL TYPE AND QUANTITY2 TAB, SOLDER LUG
OVERALL LENGTH1.937 INCHES NOMINAL IN
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY1 SLOTTED SCREW
INCLOSURE TYPEUNINCLOSED
CAPACITANCE RANGE IN PICOFARADS+0.8 TO 35.0 SINGLE SECTION
MOUNTING FACILITY TYPE AND QUANTITY1 THREADED BUSHING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
22E1Interchangeable
interchangeable cross-reference
interchangeable
617864Interchangeable
interchangeable cross-reference
interchangeable
1951Interchangeable
interchangeable cross-reference
interchangeable
29-32-9Interchangeable
interchangeable cross-reference
interchangeable
WPP1536Interchangeable
interchangeable cross-reference
interchangeable
541-0D6AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is JMC1951?
JMC1951 is a CAPACITOR,VARIABLE,AIR DIELECTRI. It is classified as a MRO (MRO_GENERAL).
What parts can replace JMC1951?
There are 15 known substitutes for JMC1951: 22E1, 617864, 1951 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for JMC1951?
JMC1951 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-865-4510. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026