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W5238 ✓ Verified by PartsTable
— · COMPONENT
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_width: 2.550 INCHES MINIMUM AND 2.570 INCHES MAXIMUM IN, body_height: 3.180 INCHES MINIMUM AND 3.200 INCHES MAXIMUM IN, body_length: 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, mounting_method: THREADED HOLE(S) SINGLE GROUP, frequency_rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-477-6702, 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
W5238
NSN: 5950-00-477-6702
FSC: 5950
CAGE: 00348 — MICROTRAN CO INC (USA)
SPECIFICATIONS
body_width2.550 INCHES MINIMUM AND 2.570 INCHES MAXIMUM IN
body_height3.180 INCHES MINIMUM AND 3.200 INCHES MAXIMUM IN
body_length2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
nominal_thread_size0.138 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp75.0 CELSIUS DEGC
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
winding_operating_current15.0 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
winding_operating_voltage5.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
NSN5950-00-477-6702
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,AIR DIELECTRI TITLE COMPONENT PN W5238 MFR CAPACITOR,VARIABLE,AIR
KEY FEATURES
•
WINDING OPERATING CURRENT: 15.0 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
•
INCLOSURE TYPE: FULLY INCLOSED
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
FREQUENCY RATING: 400.0 HERTZ NOMINAL SINGLE COMPONENT
•
BODY WIDTH: 2.550 INCHES MINIMUM AND 2.570 INCHES MAXIMUM IN
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
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)
WINDING OPERATING CURRENT15.0 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
INCLOSURE TYPEFULLY INCLOSED
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
RELIABILITY INDICATORNOT ESTABLISHED
FREQUENCY RATING400.0 HERTZ NOMINAL SINGLE COMPONENT
WINDING OPERATING CURRENT7.0 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
BODY WIDTH2.550 INCHES MINIMUM AND 2.570 INCHES MAXIMUM IN
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
MOUNTING METHODTHREADED HOLE(S) SINGLE GROUP
TERMINAL TYPE AND QUANTITY13 SOLDER STUD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
2903Interchangeable
interchangeable cross-reference
interchangeable
7285Interchangeable
interchangeable cross-reference
interchangeable
62MInterchangeable
interchangeable cross-reference
interchangeable
MH5000-100B6Interchangeable
interchangeable cross-reference
interchangeable
C765Interchangeable
interchangeable cross-reference
interchangeable
7071Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W5238?
W5238 is a CAPACITOR,VARIABLE,AIR DIELECTRI.
What parts can replace W5238?
There are 14 known substitutes for W5238: 2903, 7285, 62M and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W5238?
W5238 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-477-6702. 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