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Technical Data Sheet
2N499 ✓ 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: 0.375 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN, mounting_method: TERMINAL, terminal_length: 1.500 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN, overall_diameter: 0.200 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN, special_features: JUNCTION PATTERN ARRANGEMENT: PNP, features_provided: HERMETICALLY SEALED CASE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-852-7067, 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
2N499
NSN: 5961-00-852-7067
FSC: 5961
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
overall_length0.375 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
mounting_methodTERMINAL
terminal_length1.500 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
overall_diameter0.200 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
special_featuresJUNCTION PATTERN ARRANGEMENT: PNP
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT
semiconductor_materialGERMANIUM
terminal_circle_diameter0.071 INCHES NOMINAL IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD
specification/standard_data81349-MIL-S-19500/72 GOVERNMENT SPECIFICATION
power_rating_per_characteristic50.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
NSN5961-00-852-7067
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 2N499 MFR OEM TRANSISTOR
KEY FEATURES
TERMINAL LENGTH: 1.500 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
MOUNTING METHOD: TERMINAL
CURRENT RATING PER CHARACTERISTIC: -50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
TERMINAL CIRCLE DIAMETER: 0.071 INCHES NOMINAL IN
FEATURES PROVIDED: HERMETICALLY SEALED CASE
TERMINAL TYPE AND QUANTITY: 3 UNINSULATED WIRE LEAD
TECHNICAL CHARACTERISTICS (FLIS)
TERMINAL LENGTH1.500 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
MOUNTING METHODTERMINAL
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: PNP
CURRENT RATING PER CHARACTERISTIC-50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
OVERALL LENGTH0.375 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
TERMINAL CIRCLE DIAMETER0.071 INCHES NOMINAL IN
FEATURES PROVIDEDHERMETICALLY SEALED CASE
TERMINAL TYPE AND QUANTITY3 UNINSULATED WIRE LEAD
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.).
INTERNAL CONFIGURATIONJUNCTION CONTACT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
2N976Interchangeable
interchangeable cross-reference
interchangeable
1850-0137Interchangeable
interchangeable cross-reference
interchangeable
576M5Interchangeable
interchangeable cross-reference
interchangeable
472-0545-008Interchangeable
interchangeable cross-reference
interchangeable
DMS 78019BInterchangeable
interchangeable cross-reference
interchangeable
95446-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2N499?
2N499 is a TRANSISTOR.
What parts can replace 2N499?
There are 17 known substitutes for 2N499: 2N976, 1850-0137, 576M5 and 14 more. Substitute compatibility should be verified for your specific system.
Is 2N499 still available?
2N499 is currently cancelled.
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