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Technical Data Sheet
PartsTable / COMPONENT / 2N6649 JAN
2N6649 JAN ✓ 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_width: 1.050 INCHES MAXIMUM IN, overall_height: 0.450 INCHES MAXIMUM IN, overall_length: 1.573 INCHES MAXIMUM IN, mounting_method: UNTHREADED HOLE(S), special_features: JUNCTION PATTERN ARRANGEMENT: PNP, 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 5961-01-148-9229, 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
2N6649 JAN
NSN: 5961-01-148-9229
FSC: 5961
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
overall_width1.050 INCHES MAXIMUM IN
overall_height0.450 INCHES MAXIMUM IN
overall_length1.573 INCHES MAXIMUM IN
mounting_methodUNTHREADED HOLE(S)
special_featuresJUNCTION PATTERN ARRANGEMENT: PNP
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT-DARLINGTON CONNECTED
semiconductor_materialSILICON
mounting_facility_quantity2
terminal_type_and_quantity1 CASE AND 2 UNINSULATED WIRE LEAD
specification/standard_data81349-MIL-S-19500/527 GOVERNMENT SPECIFICATION
power_rating_per_characteristic85.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
NSN5961-01-148-9229
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 2N6649 JAN MFR OEM TRANSISTOR
KEY FEATURES
•
INTERNAL CONFIGURATION: JUNCTION CONTACT-DARLINGTON CONNECTED
•
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 175.0 CELSIUS AMBIENT AIR DEGC
•
FEATURES PROVIDED: HERMETICALLY SEALED CASE
•
POWER RATING PER CHARACTERISTIC: 85.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
•
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.).
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL CONFIGURATIONJUNCTION CONTACT-DARLINGTON CONNECTED
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT175.0 CELSIUS AMBIENT AIR DEGC
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: PNP
OVERALL LENGTH1.573 INCHES MAXIMUM IN
OVERALL WIDTH1.050 INCHES MAXIMUM IN
FEATURES PROVIDEDHERMETICALLY SEALED CASE
POWER RATING PER CHARACTERISTIC85.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
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-19500/527 GOVERNMENT SPECIFICATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
JAN2N6648Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-19500/527Interchangeable
interchangeable cross-reference
interchangeable
MIL-S-19500/527Interchangeable
interchangeable cross-reference
interchangeable
JAN2N6649Interchangeable
interchangeable cross-reference
interchangeable
MJ4011Interchangeable
interchangeable cross-reference
interchangeable
JAN2N6650Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2N6649 JAN?
2N6649 JAN is a TRANSISTOR.
What parts can replace 2N6649 JAN?
There are 10 known substitutes for 2N6649 JAN: JAN2N6648, MIL-PRF-19500/527, MIL-S-19500/527 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2N6649 JAN?
2N6649 JAN is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-148-9229. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026