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Technical Data Sheet
JANTX2N494B ✓ 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: 0.260 INCHES MAXIMUM IN, mounting_method: TERMINAL, terminal_length: 1.500 INCHES MINIMUM IN, overall_diameter: 0.370 INCHES MAXIMUM IN, features_provided: HERMETICALLY SEALED CASE, internal_configuration: JUNCTION CONTACT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-913-2863, 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
JANTX2N494B
NSN: 5961-00-913-2863
FSC: 5961
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
overall_length0.260 INCHES MAXIMUM IN
mounting_methodTERMINAL
terminal_length1.500 INCHES MINIMUM IN
overall_diameter0.370 INCHES MAXIMUM IN
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
terminal_type_and_quantity3 UNINSULATED WIRE LEAD
specification/standard_data80131-RELEASE2049 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
internal_junction_configurationPNP
power_rating_per_characteristic45.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
current_rating_per_characteristic6.00 MICROAMPERES MAXIMUM PEAK POINT CURRENT
NSN5961-00-913-2863
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 JANTX2N494B MFR OEM TRANSISTOR
KEY FEATURES
MOUNTING METHOD: TERMINAL
INTERNAL JUNCTION CONFIGURATION: PNP
OVERALL DIAMETER: 0.370 INCHES MAXIMUM IN
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 60.0 MAXIMUM BASE TO EMITTER VOLTAGE, DC
TERMINAL TYPE AND QUANTITY: 3 UNINSULATED WIRE LEAD
CURRENT RATING PER CHARACTERISTIC: 6.00 MICROAMPERES MAXIMUM PEAK POINT CURRENT
SEMICONDUCTOR MATERIAL: SILICON
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING METHODTERMINAL
INTERNAL JUNCTION CONFIGURATIONPNP
OVERALL DIAMETER0.370 INCHES MAXIMUM IN
OVERALL LENGTH0.260 INCHES MAXIMUM IN
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC60.0 MAXIMUM BASE TO EMITTER VOLTAGE, DC
TERMINAL TYPE AND QUANTITY3 UNINSULATED WIRE LEAD
CURRENT RATING PER CHARACTERISTIC6.00 MICROAMPERES MAXIMUM PEAK POINT CURRENT
SEMICONDUCTOR MATERIALSILICON
POWER RATING PER CHARACTERISTIC45.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
FEATURES PROVIDEDHERMETICALLY SEALED CASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
2N491BInterchangeable
interchangeable cross-reference
interchangeable
RELEASE4064Interchangeable
interchangeable cross-reference
interchangeable
2N489BInterchangeable
interchangeable cross-reference
interchangeable
RELEASE3648Interchangeable
interchangeable cross-reference
interchangeable
2N494BInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is JANTX2N494B?
JANTX2N494B is a TRANSISTOR.
What parts can replace JANTX2N494B?
There are 5 known substitutes for JANTX2N494B: 2N491B, RELEASE4064, 2N489B and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for JANTX2N494B?
JANTX2N494B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-913-2863. This indicates validated use in U.S. government and defense supply chains.
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