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Technical Data Sheet
2N1649 ✓ 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_height: 0.437 INCHES NOMINAL IN, overall_length: 0.375 INCHES NOMINAL IN, mounting_method: THREADED STUD(S), 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 5961-00-881-3416, 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
2N1649
NSN: 5961-00-881-3416
FSC: 5961
CAGE: 03877 — GILBERT ENGINEERING CO INC/INCON SUB OF TRANSITRON ELECTRONIC CORP (USA)
SPECIFICATIONS
overall_height0.437 INCHES NOMINAL IN
overall_length0.375 INCHES NOMINAL IN
mounting_methodTHREADED STUD(S)
features_providedHERMETICALLY SEALED CASE
nominal_thread_size0.190 INCHES IN
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
thread_series_designatorUNF
mounting_facility_quantity1
overall_width_across_flats0.437 INCHES NOMINAL IN
terminal_type_and_quantity2 TAB, SOLDER LUG
specification/standard_data80131-RELEASE3376 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
NSN5961-00-881-3416
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 2N1649 MFR OEM TRANSISTOR
KEY FEATURES
MOUNTING FACILITY QUANTITY: 1
MOUNTING METHOD: THREADED STUD(S)
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASE: COLLECTOR
THREAD SERIES DESIGNATOR: UNF
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 80.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 80.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 6.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
NOMINAL THREAD SIZE: 0.190 INCHES IN
FEATURES PROVIDED: HERMETICALLY SEALED CASE
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING FACILITY QUANTITY1
MOUNTING METHODTHREADED STUD(S)
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASECOLLECTOR
THREAD SERIES DESIGNATORUNF
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC80.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 80.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 6.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
OVERALL HEIGHT0.437 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.190 INCHES IN
FEATURES PROVIDEDHERMETICALLY SEALED CASE
INTERNAL JUNCTION CONFIGURATIONNPN
CURRENT RATING PER CHARACTERISTIC3.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
2N551Interchangeable
interchangeable cross-reference
interchangeable
RELEASE3376Interchangeable
interchangeable cross-reference
interchangeable
2N550Interchangeable
interchangeable cross-reference
interchangeable
2N546Interchangeable
interchangeable cross-reference
interchangeable
2M1647Interchangeable
interchangeable cross-reference
interchangeable
2N1647Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2N1649?
2N1649 is a TRANSISTOR.
What parts can replace 2N1649?
There are 9 known substitutes for 2N1649: 2N551, RELEASE3376, 2N550 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2N1649?
2N1649 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-881-3416. This indicates validated use in U.S. government and defense supply chains.
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