PartsTable
Technical Data Sheet
JANS2N3749 ✓ 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: 1.218 INCHES MAXIMUM IN, mounting_method: THREADED STUD(S), special_features: JUNCTION PATTERN ARRANGEMENT: NPN, features_provided: HERMETICALLY SEALED CASE, nominal_thread_size: 0.190 INCHES IN, 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 5961-01-235-4124, 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
JANS2N3749
NSN: 5961-01-235-4124
FSC: 5961
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
overall_length1.218 INCHES MAXIMUM IN
transfer_ratio40.0 MINIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER AND 120.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
mounting_methodTHREADED STUD(S)
special_featuresJUNCTION PATTERN ARRANGEMENT: NPN
features_providedHERMETICALLY SEALED CASE
nominal_thread_size0.190 INCHES IN
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
thread_series_designatorUNF
mounting_facility_quantity1
overall_width_across_flats0.438 INCHES MAXIMUM IN
terminal_type_and_quantity3 TAB, SOLDER LUG
NSN5961-01-235-4124
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 JANS2N3749 MFR OEM TRANSISTOR
KEY FEATURES
CURRENT RATING PER CHARACTERISTIC: 5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
THREAD SERIES DESIGNATOR: UNF
INTERNAL CONFIGURATION: JUNCTION CONTACT
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.).
SEMICONDUCTOR MATERIAL: SILICON
SPECIFICATION/STANDARD DATA: 81349-MIL-S-19500/315 GOVERNMENT SPECIFICATION
OVERALL WIDTH ACROSS FLATS: 0.438 INCHES MAXIMUM IN
NOMINAL THREAD SIZE: 0.190 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
CURRENT RATING PER CHARACTERISTIC5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
THREAD SERIES DESIGNATORUNF
INTERNAL CONFIGURATIONJUNCTION CONTACT
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.).
SEMICONDUCTOR MATERIALSILICON
SPECIFICATION/STANDARD DATA81349-MIL-S-19500/315 GOVERNMENT SPECIFICATION
OVERALL WIDTH ACROSS FLATS0.438 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.190 INCHES IN
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: NPN
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT200.0 CELSIUS AMBIENT AIR DEGC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
947307-7490Interchangeable
interchangeable cross-reference
interchangeable
MIL-S-19500/315Interchangeable
interchangeable cross-reference
interchangeable
JANTX2N3749AInterchangeable
interchangeable cross-reference
interchangeable
G182-862-006Interchangeable
interchangeable cross-reference
interchangeable
MILS19500-315Interchangeable
interchangeable cross-reference
interchangeable
JAN2N2880Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is JANS2N3749?
JANS2N3749 is a TRANSISTOR.
What parts can replace JANS2N3749?
There are 13 known substitutes for JANS2N3749: 947307-7490, MIL-S-19500/315, JANTX2N3749A and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for JANS2N3749?
JANS2N3749 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-235-4124. This indicates validated use in U.S. government and defense supply chains.
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