PartsTable
Technical Data Sheet
PartsTable / MRO / 1538-4
1538-4 ✓ Verified by PartsTable
Trust · 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

<b>Key features:</b><br><br>- Messenger style weatherproof carry bag for notebook and peripherals<br>- Casual design that attracts less attention to your notebook than other notebook bags<br>- Padded interior to protect your hardware<br>- Main section with strap; fits notebooks with screens up to 15.4"<br>- Convenient extra compartments to store your power supply, cables, peripherals, etc.<br>- Click buckle to ensure easy access<br>- Durable and adjustable shoulder-strap to ensure easy access and comfortable carrying This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-127-8261, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
MRO→ MRO_GENERAL→ 1538-4
NSN: 5950-00-127-8261
FSC: 5950
CAGE: 03550 — VANGUARD ELECTRONICS, LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
lens_typeDISPLAY SCREEN SINGLE LIGHT FIRST POSITION HORIZONTAL
lens_colorWHITE SINGLE LIGHT FIRST POSITION HORIZONTAL
body_length0.395 INCHES NOMINAL IN
lens_legendSTAR;SHELL SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
filter_colorWHITE SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
lens_quantity1
overall_width1.200 INCHES NOMINAL IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
coil_form_typeSOLID SINGLE COMPONENT
inclosure_typeENCASED
overall_height0.960 INCHES NOMINAL IN
NSN5950-00-127-8261
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Trust CAPACITOR,VARIABLE,GLASS DIELECT TITLE COMPONENT PN 1538-4 MFR Trust CAPACITOR,VARIABLE,GLA
KEY FEATURES
•
QUALITY FACTOR: 45 MINIMUM SINGLE COMPONENT SINGLE WINDING
•
WINDING CONDUCTOR SIZE: 0.02535 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE WINDING IN
•
WINDING OPERATING CURRENT: 490.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
•
INDUCTANCE RATING: 33.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
•
MAXIMUM OPERATING TEMP: 125.0 CELSIUS DEGC
•
COIL FORM TYPE: SOLID SINGLE COMPONENT
•
MOUNTING METHOD: TERMINAL SINGLE GROUP
•
RATING METHOD: ELECTRICAL SINGLE COMPONENT SINGLE WINDING
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)
QUALITY FACTOR45 MINIMUM SINGLE COMPONENT SINGLE WINDING
WINDING CONDUCTOR SIZE0.02535 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE WINDING IN
WINDING OPERATING CURRENT490.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
INDUCTANCE RATING33.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
MAXIMUM OPERATING TEMP125.0 CELSIUS DEGC
COIL FORM TYPESOLID SINGLE COMPONENT
MOUNTING METHODTERMINAL SINGLE GROUP
RATING METHODELECTRICAL SINGLE COMPONENT SINGLE WINDING
BODY OUTSIDE DIAMETER0.157 INCHES NOMINAL IN
BODY LENGTH0.395 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
7331Interchangeable
interchangeable cross-reference
interchangeable
215-00808-2Interchangeable
interchangeable cross-reference
interchangeable
9819Interchangeable
interchangeable cross-reference
interchangeable
A42-7I137Interchangeable
interchangeable cross-reference
interchangeable
10300078Interchangeable
interchangeable cross-reference
interchangeable
7349372Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1538-4?
1538-4 is a CAPACITOR,VARIABLE,GLASS DIELECT manufactured by Trust. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1538-4?
There are 21 known substitutes for 1538-4: 7331, 215-00808-2, 9819 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1538-4?
1538-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-127-8261. 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