PartsTable
Technical Data Sheet
J549 ✓ 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: 1.740 INCHES MAXIMUM IN, mounting_method: THREADED STUD(S), overall_diameter: 0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN, special_features: JUNCTION PATTERN ARRANGEMENT: NPN, nominal_thread_size: 0.138 INCHES IN, internal_configuration: JUNCTION CONTACT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-226-8694, 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
J549
NSN: 5961-00-226-8694
FSC: 5961
CAGE: 01295 — TEXAS INSTRUMENTS INCORPORATED (USA)
SPECIFICATIONS
overall_length1.740 INCHES MAXIMUM IN
mounting_methodTHREADED STUD(S)
overall_diameter0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN
special_featuresJUNCTION PATTERN ARRANGEMENT: NPN
nominal_thread_size0.138 INCHES IN
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
mounting_facility_quantity1
terminal_type_and_quantity3 UNINSULATED WIRE LEAD
specification/standard_data81349-MIL-S-19500/176 GOVERNMENT SPECIFICATION
power_rating_per_characteristic40.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
NSN5961-00-226-8694
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 J549 MFR OEM TRANSISTOR
KEY FEATURES
OVERALL DIAMETER: 0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN
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.).
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 10.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
CURRENT RATING PER CHARACTERISTIC: 500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
SEMICONDUCTOR MATERIAL: SILICON
MOUNTING METHOD: THREADED STUD(S)
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN
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.).
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: NPN
OVERALL LENGTH1.740 INCHES MAXIMUM IN
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 10.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
CURRENT RATING PER CHARACTERISTIC500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
SEMICONDUCTOR MATERIALSILICON
MOUNTING METHODTHREADED STUD(S)
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT200.0 CELSIUS AMBIENT AIR DEGC
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASECOLLECTOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
2N1691Interchangeable
interchangeable cross-reference
interchangeable
4192800-081Interchangeable
interchangeable cross-reference
interchangeable
J800Interchangeable
J800
interchangeable
JAN2N1047AInterchangeable
interchangeable cross-reference
interchangeable
MIL-S-19500/176Interchangeable
interchangeable cross-reference
interchangeable
158-045-0039Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is J549?
J549 is a TRANSISTOR.
What parts can replace J549?
There are 12 known substitutes for J549: 2N1691, 4192800-081, J800 and 9 more. Substitute compatibility should be verified for your specific system.
Is J549 still available?
J549 is currently cancelled.
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