PartsTable
Technical Data Sheet
USAF2N491 ✓ 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 TRANSISTOR is a the manufacturer industrial component. Key specifications include overall_length: 0.240 INCHES MINIMUM AND 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM0.260 INCHES MAXIMUM IN, mounting_method: TERMINALTERMINAL, terminal_length: 1.500 INCHES MINIMUM1.500 INCHES MINIMUM IN, overall_diameter: 0.335 INCHES MINIMUM AND 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM0.370 INCHES MAXIMUM IN, features_provided: HERMETICALLY SEALED CASEHERMETICALLY SEALED CASE, internal_configuration: UNIJUNCTIONUNIJUNCTION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-104-1402, 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
USAF2N491
NSN: 5961-00-104-1402
FSC: 5961
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
overall_length0.240 INCHES MINIMUM AND 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM0.260 INCHES MAXIMUM IN
mounting_methodTERMINALTERMINAL
terminal_length1.500 INCHES MINIMUM1.500 INCHES MINIMUM IN
overall_diameter0.335 INCHES MINIMUM AND 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM0.370 INCHES MAXIMUM IN
features_providedHERMETICALLY SEALED CASEHERMETICALLY SEALED CASE
internal_configurationUNIJUNCTIONUNIJUNCTION
semiconductor_materialSILICONSILICON
terminal_circle_diameter0.200 INCHES NOMINAL0.200 INCHES NOMINAL IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD3 UNINSULATED WIRE LEAD
specification/standard_data81349-MIL-S-19500/75 GOVERNMENT SPECIFICATION81349-MIL-S-19500/75 GOVERNMENT SPECIFICATION
power_rating_per_characteristic600.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION600.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
current_rating_per_characteristic72.00 MILLIAMPERES MAXIMUM EMITTER CURRENT, DC72.00 MILLIAMPERES MAXIMUM EMITTER CURRENT, DC
NSN5961-00-104-1402
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 USAF2N491 MFR OEM TRANSISTOR
KEY FEATURES
OVERALL DIAMETER: 0.335 INCHES MINIMUM AND 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM0.370 INCHES MAXIMUM IN
CURRENT RATING PER CHARACTERISTIC: 72.00 MILLIAMPERES MAXIMUM EMITTER CURRENT, DC72.00 MILLIAMPERES MAXIMUM EMITTER CURRENT, DC
TEST DATA DOCUMENT: 81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
SPECIFICATION/STANDARD DATA: 81349-MIL-S-19500/75 GOVERNMENT SPECIFICATION81349-MIL-S-19500/75 GOVERNMENT SPECIFICATION
SEMICONDUCTOR MATERIAL: SILICONSILICON
TERMINAL LENGTH: 1.500 INCHES MINIMUM1.500 INCHES MINIMUM IN
MOUNTING METHOD: TERMINALTERMINAL
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 175.0 CELSIUS JUNCTION175.0 CELSIUS JUNCTION DEGC
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER0.335 INCHES MINIMUM AND 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM0.370 INCHES MAXIMUM IN
CURRENT RATING PER CHARACTERISTIC72.00 MILLIAMPERES MAXIMUM EMITTER CURRENT, DC72.00 MILLIAMPERES MAXIMUM EMITTER CURRENT, DC
TEST DATA DOCUMENT81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
SPECIFICATION/STANDARD DATA81349-MIL-S-19500/75 GOVERNMENT SPECIFICATION81349-MIL-S-19500/75 GOVERNMENT SPECIFICATION
SEMICONDUCTOR MATERIALSILICONSILICON
TERMINAL LENGTH1.500 INCHES MINIMUM1.500 INCHES MINIMUM IN
MOUNTING METHODTERMINALTERMINAL
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT175.0 CELSIUS JUNCTION175.0 CELSIUS JUNCTION DEGC
FEATURES PROVIDEDHERMETICALLY SEALED CASEHERMETICALLY SEALED CASE
POWER RATING PER CHARACTERISTIC600.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION600.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
MIL-S-19500/75Interchangeable
interchangeable cross-reference
interchangeable
JANTX2N494AInterchangeable
interchangeable cross-reference
interchangeable
L00849Interchangeable
interchangeable cross-reference
interchangeable
JAN2N491AInterchangeable
interchangeable cross-reference
interchangeable
SJD0869Interchangeable
interchangeable cross-reference
interchangeable
2N491AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is USAF2N491?
USAF2N491 is a TRANSISTOR.
What parts can replace USAF2N491?
There are 27 known substitutes for USAF2N491: MIL-S-19500/75, JANTX2N494A, L00849 and 24 more. Substitute compatibility should be verified for your specific system.
Is USAF2N491 still available?
USAF2N491 is currently cancelled.
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