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Technical Data Sheet
PartsTable / MRO / C4545
C4545 ✓ 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

The CAPACITOR,FIXED,AIR DIELECTRIC is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include body_style: W/THD MTG HOLE(S)/STUD(S) TERMINAL(S) ON ONE SURFACE, body_width: 3.000 INCHES NOMINAL IN, body_height: 4.000 INCHES NOMINAL IN, body_length: 3.750 INCHES NOMINAL IN, rating_method: ELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE WINDING, turn_quantity: 16 SINGLE COMPONENT SINGLE WINDING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-840-5406, 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→ C4545
NSN: 5950-00-840-5406
FSC: 5950
CAGE: 91820 — JETRONIC INDUSTRIES, INC. DBA JETRONIC INDUSTRIES, INC. DIV CONTRACTS (USA)
SPECIFICATIONS
body_styleW/THD MTG HOLE(S)/STUD(S) TERMINAL(S) ON ONE SURFACE
body_width3.000 INCHES NOMINAL IN
body_height4.000 INCHES NOMINAL IN
body_length3.750 INCHES NOMINAL IN
rating_methodELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE WINDING
turn_quantity16 SINGLE COMPONENT SINGLE WINDING
coil_form_typeHOLLOW SINGLE COMPONENT
inclosure_typeOPEN
quality_factor85 MINIMUM SINGLE COMPONENT SINGLE WINDING
mounting_methodTHREADED BUSHING SINGLE GROUP
core_constructionPOWDERED SINGLE COMPONENT
inductance_rating1.28 MICROHENRIES MINIMUM AND 2.13 MICROHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING
NSN5950-00-840-5406
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,AIR DIELECTRIC TITLE COMPONENT PN C4545 MFR CAPACITOR,FIXED,AIR DI
KEY FEATURES
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
ADJUSTMENT METHOD AND QUANTITY: 1 ADJUSTABLE CORE SINGLE COMPONENT
•
DC RESISTANCE RATING IN OHMS: 0.058 SINGLE COMPONENT SINGLE WINDING
•
INCLOSURE TYPE: OPEN
•
TURN QUANTITY: 16 SINGLE COMPONENT SINGLE WINDING
•
THREAD SERIES DESIGNATOR: UNF SINGLE GROUP
•
MOUNTING METHOD: THREADED BUSHING SINGLE GROUP
•
COIL FORM TYPE: HOLLOW 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)
RELIABILITY INDICATORNOT ESTABLISHED
ADJUSTMENT METHOD AND QUANTITY1 ADJUSTABLE CORE SINGLE COMPONENT
DC RESISTANCE RATING IN OHMS0.058 SINGLE COMPONENT SINGLE WINDING
INCLOSURE TYPEOPEN
TURN QUANTITY16 SINGLE COMPONENT SINGLE WINDING
THREAD SERIES DESIGNATORUNF SINGLE GROUP
MOUNTING METHODTHREADED BUSHING SINGLE GROUP
COIL FORM TYPEHOLLOW SINGLE COMPONENT
ADJUSTMENT DEVICE DRIVE TYPESLOTTED SCREW SINGLE COMPONENT
CORE CONSTRUCTIONPOWDERED SINGLE COMPONENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
126-008-0001Interchangeable
interchangeable cross-reference
interchangeable
4545Interchangeable
interchangeable cross-reference
interchangeable
10000702Interchangeable
interchangeable cross-reference
interchangeable
45-1235Interchangeable
interchangeable cross-reference
interchangeable
TGC545Interchangeable
interchangeable cross-reference
interchangeable
81-350Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C4545?
C4545 is a CAPACITOR,FIXED,AIR DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace C4545?
There are 17 known substitutes for C4545: 126-008-0001, 4545, 10000702 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C4545?
C4545 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-840-5406. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026