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Technical Data Sheet
PartsTable / COMPONENT / 312 1.25
312 1.25 ✓ 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

The 312 1.25 is a the manufacturer industrial 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 5920-01-440-0186, 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
312 1.25
NSN: 5920-01-440-0186
FSC: 5920
CAGE: 75915 — LITTELFUSE, INC. (USA)
SPECIFICATIONS
Part Number312 1.25
NSN5920-01-440-0186
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 312 1.25 TITLE COMPONENT PN 312 1.25 MFR 312 1.25
KEY FEATURES
•
CIRCUIT OVER-CURRENT INTERRUPTION TYPE: TIME DELAY
•
MAXIMUM VOLTAGE RATING IN VOLTS: 250.0 AC
•
CIRCUIT OVER-CURRENT INTERRUPTION DELAY TIME IN SECONDS: 5.0 200 PCT OF CURRENT RATING
•
OVERALL DIAMETER: 0.250 INCHES NOMINAL IN
•
CONTINUOUS CURRENT RATING IN AMPS: 1.250
•
SURFACE TREATMENT: SOLDER TERMINAL
•
BODY STYLE: TUBE TYPE
TECHNICAL CHARACTERISTICS (FLIS)
CIRCUIT OVER-CURRENT INTERRUPTION TYPETIME DELAY
MAXIMUM VOLTAGE RATING IN VOLTS250.0 AC
OVERALL LENGTH1.250 INCHES NOMINAL IN
CIRCUIT OVER-CURRENT INTERRUPTION DELAY TIME IN SECONDS5.0 200 PCT OF CURRENT RATING
OVERALL DIAMETER0.250 INCHES NOMINAL IN
CONTINUOUS CURRENT RATING IN AMPS1.250
SURFACE TREATMENTSOLDER TERMINAL
BODY STYLETUBE TYPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
MIL-PRF-15160/2Interchangeable
interchangeable cross-reference
interchangeable
BK/AGC-B-1/8Interchangeable
interchangeable cross-reference
interchangeable
MS90078-4Interchangeable
interchangeable cross-reference
interchangeable
392-125Interchangeable
interchangeable cross-reference
interchangeable
AGC1-8AMPInterchangeable
interchangeable cross-reference
interchangeable
5560439-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 312 1.25?
312 1.25 is a 312 1.25.
What parts can replace 312 1.25?
There are 12 known substitutes for 312 1.25: MIL-PRF-15160/2, BK/AGC-B-1/8, MS90078-4 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 312 1.25?
312 1.25 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5920-01-440-0186. 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