PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 1657-3-4
1657-3-4 ✓ 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,FIXED,MICA DIELECTRIC. Key specifications include body_length: 0.406 INCHES NOMINAL IN, rating_method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING, turn_quantity: 9 1/2 SINGLE COMPONENT SINGLE WINDING, coil_form_type: SOLID SINGLE COMPONENT, inclosure_type: OPEN, quality_factor: 103 MINIMUM SINGLE COMPONENT SINGLE WINDING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5940-00-270-3274, 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
1657-3-4
NSN: 5940-00-270-3274
FSC: 5940
CAGE: 21355 — LTA/D-CEMCO INC DBA D-CEMCO (USA)
SPECIFICATIONS
body_length0.406 INCHES NOMINAL IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
turn_quantity9 1/2 SINGLE COMPONENT SINGLE WINDING
coil_form_typeSOLID SINGLE COMPONENT
inclosure_typeOPEN
quality_factor103 MINIMUM SINGLE COMPONENT SINGLE WINDING
mounting_methodTERMINAL SINGLE GROUP
inductance_rating0.70 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
body_outside_diameter1.125 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
end_item_identification3805-01-537-7952;DITCHING MACHINE RT40
terminal_type_and_quantity2 WIRE LEAD
NSN5940-00-270-3274
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN 1657-3-4 MFR CAPACITOR,FIXED,MICA D
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
30106Interchangeable
interchangeable cross-reference
interchangeable
MILC5Interchangeable
interchangeable cross-reference
interchangeable
39-22Interchangeable
interchangeable cross-reference
interchangeable
CM56B512JInterchangeable
interchangeable cross-reference
interchangeable
2012Interchangeable
interchangeable cross-reference
interchangeable
T110C475K100ASInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy 1657-3-4?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 1657-3-4?
1657-3-4 is a CAPACITOR,FIXED,MICA DIELECTRIC.
What parts can replace 1657-3-4?
There are 25 known substitutes for 1657-3-4: 30106, MILC5, 39-22 and 22 more. Substitute compatibility should be verified for your specific system.
Is 1657-3-4 still available?
1657-3-4 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 1657-3-4

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026