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Technical Data Sheet
1N957B ✓ 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: 0.120 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN, mounting_method: TERMINAL, terminal_length: 1.000 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN, overall_diameter: 0.055 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN, special_features: WEAPON SYSTEM ESSENTIAL.. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-104-1400, 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
1N957B
NSN: 5961-00-104-1400
FSC: 5961
CAGE: 15818 — TELCOM SEMICONDUCTOR INC (USA)
SPECIFICATIONS
materialSILICON SEMICONDUCTOR
overall_length0.120 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
mounting_methodTERMINAL
terminal_length1.000 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
overall_diameter0.055 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
special_featuresWEAPON SYSTEM ESSENTIAL.
features_providedHERMETICALLY SEALED CASE
terminal_type_and_quantity2 UNINSULATED WIRE LEAD
function_for_which_designedZENER DIODE
specification/standard_data81349-MIL-S-19500/127 GOVERNMENT SPECIFICATION
voltage_tolerance_in_percent-5.0 TO 5.0
criticality_code_justificationFEAT
NSN5961-00-104-1400
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 1N957B MFR OEM SEMICONDUCTOR DEVICE,DIODE
KEY FEATURES
TERMINAL LENGTH: 1.000 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
MOUNTING METHOD: TERMINAL
OVERALL DIAMETER: 0.085 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
CURRENT RATING PER CHARACTERISTIC: 20.00 MILLIAMPERES MAXIMUM VOLTAGE REGULATOR DIODE CURRENT
VOLTAGE TOLERANCE IN PERCENT: -5.0 TO 5.0
POWER RATING PER CHARACTERISTIC: 400.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 6.8 NOMINAL NOMINAL REGULATOR VOLTAGE
TECHNICAL CHARACTERISTICS (FLIS)
TERMINAL LENGTH1.000 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
MOUNTING METHODTERMINAL
OVERALL LENGTH0.230 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
OVERALL DIAMETER0.085 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
CURRENT RATING PER CHARACTERISTIC20.00 MILLIAMPERES MAXIMUM VOLTAGE REGULATOR DIODE CURRENT
VOLTAGE TOLERANCE IN PERCENT-5.0 TO 5.0
POWER RATING PER CHARACTERISTIC400.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC6.8 NOMINAL NOMINAL REGULATOR VOLTAGE
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT175.0 CELSIUS AMBIENT AIR DEGC
FEATURES PROVIDEDHERMETICALLY SEALED CASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
6083-1009Interchangeable
interchangeable cross-reference
interchangeable
1N957BInterchangeable
interchangeable cross-reference
interchangeable
7645092Interchangeable
interchangeable cross-reference
interchangeable
5921204Interchangeable
interchangeable cross-reference
interchangeable
SZG30786427Interchangeable
interchangeable cross-reference
interchangeable
JANTX1N754AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1N957B?
1N957B is a SEMICONDUCTOR DEVICE,DIODE.
What parts can replace 1N957B?
There are 18 known substitutes for 1N957B: 6083-1009, 1N957B, 7645092 and 15 more. Substitute compatibility should be verified for your specific system.
Is 1N957B still available?
1N957B is currently cancelled.
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