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Technical Data Sheet
PartsTable / MRO / JMC5201
JMC5201 ✓ 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 body_style: PISTON, body_length: 0.312 INCHES NOMINAL IN, inclosure_type: ENCASED, overall_length: 0.484 INCHES NOMINAL IN, overall_diameter: 0.281 INCHES NOMINAL IN, tuning_characteristic: STRAIGHT LINE CAPACITY SINGLE SECTION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-528-9190, 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→ JMC5201
NSN: 5910-00-528-9190
FSC: 5910
CAGE: 91293 — KNOWLES CAZENOVIA, INC. DIV JOHANSON MANUFACTURING (USA)
SPECIFICATIONS
body_stylePISTON
body_length0.312 INCHES NOMINAL IN
inclosure_typeENCASED
overall_length0.484 INCHES NOMINAL IN
overall_diameter0.281 INCHES NOMINAL IN
tuning_characteristicSTRAIGHT LINE CAPACITY SINGLE SECTION
adjustment_device_torque0.200 INCH-OUNCES MINIMUM AND 10.000 INCH-OUNCES MAXIMUM IN
nonderated_operating_temp-55.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
terminal_type_and_quantity2 PRINTED CIRCUIT
capacitance_drift_in_picofarads0.01 SINGLE SECTION
capacitance_range_in_picofarads+0.8 TO 10.0 SINGLE SECTION
quality_factor_at_25_deg_celsius5000.0
NSN5910-00-528-9190
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,AIR DIELECTRI TITLE COMPONENT PN JMC5201 MFR CAPACITOR,VARIABLE,AIR
KEY FEATURES
•
INSULATION DC RESISTANCE AT MAX OPERATING TEMP: 100.0 GIGOHMS
•
TERMINAL TYPE AND QUANTITY: 2 PRINTED CIRCUIT
•
ADJUSTMENT DEVICE TORQUE: 0.200 INCH-OUNCES MINIMUM AND 10.000 INCH-OUNCES MAXIMUM IN
•
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY: 1 SLOTTED SCREW
•
TEMP COEFFICIENT OF CAPACITANCE IN PPM PER DEG CELSIUS: 0.0 SINGLE SECTION
•
NONDERATED OPERATING TEMP: -55.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
•
TUNING CHARACTERISTIC: STRAIGHT LINE CAPACITY SINGLE SECTION
•
CAPACITANCE RANGE IN PICOFARADS: +0.8 TO 10.0 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)
INSULATION DC RESISTANCE AT MAX OPERATING TEMP100.0 GIGOHMS
TERMINAL TYPE AND QUANTITY2 PRINTED CIRCUIT
ADJUSTMENT DEVICE TORQUE0.200 INCH-OUNCES MINIMUM AND 10.000 INCH-OUNCES MAXIMUM IN
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY1 SLOTTED SCREW
TEMP COEFFICIENT OF CAPACITANCE IN PPM PER DEG CELSIUS0.0 SINGLE SECTION
NONDERATED OPERATING TEMP-55.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
TUNING CHARACTERISTICSTRAIGHT LINE CAPACITY SINGLE SECTION
CAPACITANCE RANGE IN PICOFARADS+0.8 TO 10.0 SINGLE SECTION
NONDERATED VOLTAGE RATING AND TYPE250.0 DC CONTINUOUS SINGLE SECTION
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO DIAMETER0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
5521Interchangeable
interchangeable cross-reference
interchangeable
166D2Interchangeable
interchangeable cross-reference
interchangeable
BT5521Interchangeable
interchangeable cross-reference
interchangeable
04603Interchangeable
interchangeable cross-reference
interchangeable
251DCInterchangeable
interchangeable cross-reference
interchangeable
1001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is JMC5201?
JMC5201 is a CAPACITOR,VARIABLE,AIR DIELECTRI. It is classified as a MRO (MRO_GENERAL).
What parts can replace JMC5201?
There are 27 known substitutes for JMC5201: 5521, 166D2, BT5521 and 24 more. Substitute compatibility should be verified for your specific system.
Is JMC5201 still available?
JMC5201 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