PartsTable
Technical Data Sheet
1N251 ✓ 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: GLASS ENCLOSURE, overall_length: 0.300 INCHES MAXIMUM IN, mounting_method: TERMINAL, terminal_length: 1.000 INCHES MINIMUM IN, overall_diameter: 0.125 INCHES MAXIMUM 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 5961-00-017-0459, 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
1N251
NSN: 5961-00-017-0459
FSC: 5961
CAGE: 03877 — GILBERT ENGINEERING CO INC/INCON SUB OF TRANSITRON ELECTRONIC CORP (USA)
SPECIFICATIONS
materialGLASS ENCLOSURE
overall_length0.300 INCHES MAXIMUM IN
mounting_methodTERMINAL
terminal_length1.000 INCHES MINIMUM IN
overall_diameter0.125 INCHES MAXIMUM IN
features_providedHERMETICALLY SEALED CASE
terminal_type_and_quantity2 UNINSULATED WIRE LEAD
specification/standard_data81349-MIL-S-19500/188 GOVERNMENT SPECIFICATION
current_rating_per_characteristic0.20 AMPERES MAXIMUM REVERSE CURRENT, DC
voltage_rating_in_volts_per_characteristic40.0 MAXIMUM REVERSE VOLTAGE, PEAK
maximum_operating_temp_per_measurement_point150.0 CELSIUS AMBIENT AIR DEGC
NSN5961-00-017-0459
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 1N251 MFR OEM SEMICONDUCTOR DEVICE,DIODE
KEY FEATURES
CURRENT RATING PER CHARACTERISTIC: 5.00 MILLIAMPERES MINIMUM FORWARD CURRENT, DC
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 100.0 CELSIUS AMBIENT AIR DEGC
MATERIAL: GLASS ENCLOSURE
MOUNTING METHOD: TERMINAL
OVERALL DIAMETER: 0.150 INCHES MAXIMUM IN
TERMINAL LENGTH: 1.000 INCHES MINIMUM IN
TERMINAL TYPE AND QUANTITY: 2 UNINSULATED WIRE LEAD
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 1.0 MINIMUM FORWARD VOLTAGE, DC
TECHNICAL CHARACTERISTICS (FLIS)
CURRENT RATING PER CHARACTERISTIC5.00 MILLIAMPERES MINIMUM FORWARD CURRENT, DC
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT100.0 CELSIUS AMBIENT AIR DEGC
MATERIALGLASS ENCLOSURE
MOUNTING METHODTERMINAL
OVERALL DIAMETER0.150 INCHES MAXIMUM IN
TERMINAL LENGTH1.000 INCHES MINIMUM IN
TERMINAL TYPE AND QUANTITY2 UNINSULATED WIRE LEAD
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC1.0 MINIMUM FORWARD VOLTAGE, DC
OVERALL LENGTH0.300 INCHES MAXIMUM IN
MATERIALSILICON SEMICONDUCTOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
1N251Interchangeable
interchangeable cross-reference
interchangeable
JAN1N251Interchangeable
interchangeable cross-reference
interchangeable
SMB414246Interchangeable
interchangeable cross-reference
interchangeable
67203-1N251Interchangeable
interchangeable cross-reference
interchangeable
99250-212Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1N251?
1N251 is a SEMICONDUCTOR DEVICE,DIODE.
What parts can replace 1N251?
There are 5 known substitutes for 1N251: 1N251, JAN1N251, SMB414246 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1N251?
1N251 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-017-0459. This indicates validated use in U.S. government and defense supply chains.
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