PartsTable
Technical Data Sheet
1N4257 ✓ Verified by PartsTable
· SFP TRANSCEIVER
WHAT YOU NEED TO KNOW
SR = Short Range (multimode, 300m) | LR = Long Range (single-mode, 10km) DOM = Digital Optical Monitoring — most enterprise SFPs support it
MATCH ALL THREE: Speed + Wavelength + Brand compatibility
PRODUCT OVERVIEW

The SEMICONDUCTOR DEVICE,DIODE is a the manufacturer industrial component. Key specifications include material: SILICON SEMICONDUCTOR, overall_length: 0.350 INCHES MINIMUM IN, mounting_method: TERMINAL, terminal_length: 1.130 INCHES MINIMUM IN, overall_diameter: 0.140 INCHES MINIMUM IN, features_provided: HERMETICALLY SEALED CASE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-400-9912, 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
1N4257
NSN: 5961-00-400-9912
FSC: 5961
CAGE: 14099 — SEMTECH CORPORATION (USA)
SPECIFICATIONS
materialSILICON SEMICONDUCTOR
overall_length0.350 INCHES MINIMUM IN
mounting_methodTERMINAL
terminal_length1.130 INCHES MINIMUM IN
overall_diameter0.140 INCHES MINIMUM IN
features_providedHERMETICALLY SEALED CASE
terminal_type_and_quantity2 UNINSULATED WIRE LEAD
specification/standard_data80131-RELEASE4488 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
current_rating_per_characteristic0.25 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
voltage_rating_in_volts_per_characteristic3000.0 MAXIMUM REVERSE VOLTAGE, PEAK
NSN5961-00-400-9912
COMPONENT DIAGRAM
BAIL LATCH 10G SFP+ 850nm · SR (MMF, 300m) DOM: Digital Optical Monitoring TX RX LC DUPLEX 20-PIN EDGE CONNECTOR ~56.5 mm ~13.4mm SFP+ TRANSCEIVER | 10G | 850nm | SR (MMF, 300m) Hot-swappable | LC duplex fiber | DDM/DOM supported TITLE SFP+ XCVR PN 1N4257 MFR OEM SEMICONDUCTOR DEVICE,DIODE
KEY FEATURES
MOUNTING METHOD: TERMINAL
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 3000.0 MAXIMUM REVERSE VOLTAGE, PEAK
TERMINAL LENGTH: 1.130 INCHES MINIMUM IN
CURRENT RATING PER CHARACTERISTIC: 0.25 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
FEATURES PROVIDED: HERMETICALLY SEALED CASE
OVERALL DIAMETER: 0.140 INCHES MINIMUM IN
SPECIFICATION/STANDARD DATA: 80131-RELEASE4488 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING METHODTERMINAL
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC3000.0 MAXIMUM REVERSE VOLTAGE, PEAK
OVERALL LENGTH0.350 INCHES MINIMUM IN
TERMINAL LENGTH1.130 INCHES MINIMUM IN
CURRENT RATING PER CHARACTERISTIC0.25 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
FEATURES PROVIDEDHERMETICALLY SEALED CASE
OVERALL DIAMETER0.140 INCHES MINIMUM IN
SPECIFICATION/STANDARD DATA80131-RELEASE4488 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
MATERIALSILICON SEMICONDUCTOR
TERMINAL TYPE AND QUANTITY2 UNINSULATED WIRE LEAD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
MIL-PRF-19500/279Interchangeable
interchangeable cross-reference
interchangeable
SC20Interchangeable
interchangeable cross-reference
interchangeable
MIL-S-19500/279Interchangeable
interchangeable cross-reference
interchangeable
10182354-005Interchangeable
interchangeable cross-reference
interchangeable
1N4249Interchangeable
interchangeable cross-reference
interchangeable
RELEASE4488Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1N4257?
1N4257 is a SEMICONDUCTOR DEVICE,DIODE.
What parts can replace 1N4257?
There are 6 known substitutes for 1N4257: MIL-PRF-19500/279, SC20, MIL-S-19500/279 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1N4257?
1N4257 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-400-9912. This indicates validated use in U.S. government and defense supply chains.
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