PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

JANTX2N3499Transistor

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-00-758-5815 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-758-5815 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-758-5815. Primary manufacturer part number: JANTX2N3499.
Features
  • Transistor — FSC 5961
  • Terminal Circle Diameter: 0.200 INCHES NOMINAL IN
  • Power Rating Per Characteristic: 5.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
  • Specification/standard Data: 81349-MIL-S-19500/366 GOVERNMENT SPECIFICATION
  • 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.).
  • Overall Diameter: 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Internal Configuration: JUNCTION CONTACT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-758-5815, is classified within Federal Supply Class 5961 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-758-5815
Primary Part NumberJANTX2N3499
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Terminal Circle Diameter0.200 INCHES NOMINAL IN
Power Rating Per Characteristic5.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Specification/standard Data81349-MIL-S-19500/366 GOVERNMENT SPECIFICATION
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.).
Overall Diameter0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Internal ConfigurationJUNCTION CONTACT
Semiconductor MaterialSILICON
Terminal Length0.500 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Current Rating Per Characteristic500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Mounting MethodTERMINAL
Voltage Rating in Volts Per Characteristic100.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 100.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5961-00-011-7110 INTERCHANGEABLE
Transistor
5961-00-014-6458 INTERCHANGEABLE
Transistor
5961-00-052-52701602557 INTERCHANGEABLE
Transistor
Lockheed Martin Corporation Div Rms - Mitchel Field
5961-00-113-7650 INTERCHANGEABLE
Transistor
5961-00-386-5947803529-0002 INTERCHANGEABLE
Transistor
North Atlantic Industries, Inc. Dba North Atlantic Industries
5961-00-415-5994 INTERCHANGEABLE
Transistor
5961-00-456-4711 INTERCHANGEABLE
Transistor
5961-00-559-5738 INTERCHANGEABLE
Transistor
5961-00-758-554174999774 INTERCHANGEABLE
Transistor
Kalmar AC Inc
5961-00-835-2904 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
JANTX2N3499 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
T00002N3499Y5 Indra Sistemas, Sociedad Anonima (ESP)
SP2155 Texas Instruments Incorporated (USA)
2N3499 Freescale Semiconductor, Inc. (USA)
5961PL1278060 Jednolity Indeks Materialowy - Uniform Material Index (POL)
13-1006492-1 General Dynamics Mission Systems, Inc. (USA)
460067-2 Colt Industries Operating Corp Liquidometer Opn Div P O Box 330651 W Hartford Ct 06133 (USA)
SP3815 Texas Instruments Incorporated (USA)
JANTX2N3499A Lacon Electronic Gmbh (DEU)
MIL-PRF-19500/366 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JAN2N3499 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-S-19500/366 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JANTX2N3499A Adelco Elektronik Gmbh (DEU)
803529-2 Nai Technologies Inc (USA)
460067-2 Freescale Semiconductor, Inc. (USA)
Related Parts
5961-00-011-7110INTERCHANGEABLE
TRANSISTOR
5961-00-014-6458INTERCHANGEABLE
TRANSISTOR
5961-00-052-5270INTERCHANGEABLE
TRANSISTOR
1602557
5961-00-113-7650INTERCHANGEABLE
TRANSISTOR
5961-00-386-5947INTERCHANGEABLE
TRANSISTOR
803529-0002
5961-00-415-5994INTERCHANGEABLE
TRANSISTOR
5961-00-456-4711INTERCHANGEABLE
TRANSISTOR
5961-00-559-5738INTERCHANGEABLE
TRANSISTOR
5961-00-758-5541INTERCHANGEABLE
TRANSISTOR
74999774
5961-00-835-2904INTERCHANGEABLE
TRANSISTOR
5961-00-935-4963INTERCHANGEABLE
TRANSISTOR
5961-01-026-2573INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-00-758-5815?

NSN 5961-00-758-5815 is a Transistor, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-758-5815?

NSN 5961-00-758-5815 has 15 cross-referenced part numbers: JANTX2N3499 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), T00002N3499Y5 (Indra Sistemas, Sociedad Anonima), SP2155 (Texas Instruments Incorporated), 2N3499 (Freescale Semiconductor, Inc.), 5961PL1278060 (Jednolity Indeks Materialowy - Uniform Material Index) and 10 more.

What NSN replaces 5961-00-758-5815?

There are 12 known substitutes for 5961-00-758-5815: 5961-00-011-7110, 5961-00-014-6458, 5961-00-052-5270 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of JANTX2N3499?

Key specifications for JANTX2N3499: Terminal Circle Diameter: 0.200 INCHES NOMINAL IN; Special Features: JUNCTION PATTERN ARRANGEMENT: NPN; Power Rating Per Characteristic: 5.0 WATTS MAXIMUM TOTAL POWER DISSIPATION; Specification/standard Data: 81349-MIL-S-19500/366 GOVERNMENT SPECIFICATION. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-758-5815 still in active supply?

NSN 5961-00-758-5815 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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