PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

JAN2N3739Transistor

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-00-439-3749 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-439-3749 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-439-3749. Primary manufacturer part number: JAN2N3739.
Features
  • Transistor — FSC 5961
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
  • Voltage Rating in Volts Per Characteristic: 325.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 300.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
  • Semiconductor Material: SILICON
  • Power Rating Per Characteristic: 20.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
  • Current Rating Per Characteristic: 0.50 AMPERES MAXIMUM BASE CURRENT, DC AND 1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Internal Configuration: JUNCTION CONTACT
  • Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD AND 1 CASE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-439-3749, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 13 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
NSN5961-00-439-3749
Primary Part NumberJAN2N3739
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
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Voltage Rating in Volts Per Characteristic325.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 300.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Semiconductor MaterialSILICON
Power Rating Per Characteristic20.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Current Rating Per Characteristic0.50 AMPERES MAXIMUM BASE CURRENT, DC AND 1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Internal ConfigurationJUNCTION CONTACT
Terminal Type and Quantity2 UNINSULATED WIRE LEAD AND 1 CASE
Mounting Facility Quantity2
Mounting MethodUNTHREADED HOLE(S)
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Test Data Document81349-MIL-PRF-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.).
Specification/standard Data81349-MIL-S-19500/402 GOVERNMENT SPECIFICATION
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
8140-00-039-1040330100 INTERCHANGEABLE
Shipping and Storage Container,m
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5961-00-137-4810 INTERCHANGEABLE
Transistor
5331-00-248-38476227-13 INTERCHANGEABLE
O-Ring
Arrowhead Products Corp
3530-00-390-454040264 INTERCHANGEABLE
Bobbin,sewing Machine
Singer Industrial Sewing Products Co Cutters Exchange Div
4820-00-433-3832 INTERCHANGEABLE
Valve,check
5961-00-444-3243 INTERCHANGEABLE
Transistor
5950-00-500-902411608310 INTERCHANGEABLE
Transformer,power
U S Army Tank Automotive Command Amsta-Im-Mm
5961-00-553-9059 INTERCHANGEABLE
Transistor
4730-00-560-5341330-100 INTERCHANGEABLE
Strainer Element,sediment
Marvel Engineering Company Inc
5961-00-876-66061854-0253 INTERCHANGEABLE
Transistor
Keysight Technologies Inc
Cross-Reference Index
Part NumberManufacturer
JAN2N3739 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
330100 California Instruments Corp (USA)
0776-5000 Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc (USA)
40422 Electronic Industries Association
4805-178525 Fluke Corp (USA)
538326-1 Raytheon Company Dba Raytheon (USA)
2N3739 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
339628-1 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
200895-001 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
JAN2N3749 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JAN2N3739A Adelco Elektronik Gmbh (DEU)
50A0019 Siemens Energy & Automation, Inc. Dba Siemens Airfield Solutions Div Siemens Energy & Automation Dba Siemens Airfield Solutions (USA)
MIL-S-19500/402 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5961PL1375570 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MIL-PRF-19500/402 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
40264 Rca Corp Distribution and Special Products (USA)
20861-76 Hickok Waekon Llc (USA)
Related Parts
8140-00-039-1040INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,M
330100
5961-00-137-4810INTERCHANGEABLE
TRANSISTOR
5331-00-248-3847INTERCHANGEABLE
O-RING
6227-13
3530-00-390-4540INTERCHANGEABLE
BOBBIN,SEWING MACHINE
40264
4820-00-433-3832INTERCHANGEABLE
VALVE,CHECK
5961-00-444-3243INTERCHANGEABLE
TRANSISTOR
5950-00-500-9024INTERCHANGEABLE
TRANSFORMER,POWER
11608310
5961-00-553-9059INTERCHANGEABLE
TRANSISTOR
4730-00-560-5341INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
330-100
5961-00-876-6606INTERCHANGEABLE
TRANSISTOR
1854-0253
5360-00-931-8753INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
5961-00-938-5100INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-00-439-3749?

NSN 5961-00-439-3749 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 5961-00-439-3749?

NSN 5961-00-439-3749 has 17 cross-referenced part numbers: JAN2N3739 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 330100 (California Instruments Corp), 0776-5000 (Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc), 40422 (Electronic Industries Association), 4805-178525 (Fluke Corp) and 12 more.

What NSN replaces 5961-00-439-3749?

There are 12 known substitutes for 5961-00-439-3749: 8140-00-039-1040, 5961-00-137-4810, 5331-00-248-3847 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of JAN2N3739?

Key specifications for JAN2N3739: Electrode Internally-Electrically Connected to Case: COLLECTOR; Voltage Rating in Volts Per Characteristic: 325.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 300.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN; Overall Width: 0.700 INCHES MAXIMUM IN; Semiconductor Material: SILICON. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-439-3749 still in active supply?

NSN 5961-00-439-3749 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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