PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N3739Transistor

Lacon Electronic Gmbh · NSN 5961-00-938-5100 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-938-5100 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-938-5100. Primary manufacturer part number: 2N3739.
Features
  • Transistor — FSC 5961
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC
  • Specification/standard Data: 80131-RELEASE5109 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
  • Internal Junction Configuration: NPN
  • Features Provided: HERMETICALLY SEALED CASE
  • Semiconductor Material: SILICON
  • Mounting Method: UNTHREADED HOLE(S)
  • Voltage Rating in Volts Per Characteristic: 325.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 300.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 6.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-938-5100, 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 Lacon Electronic Gmbh. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-938-5100
Primary Part Number2N3739
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerLacon Electronic Gmbh
StatusCANCELLED
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Specification/standard Data80131-RELEASE5109 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Internal Junction ConfigurationNPN
Features ProvidedHERMETICALLY SEALED CASE
Semiconductor MaterialSILICON
Mounting MethodUNTHREADED HOLE(S)
Voltage Rating in Volts Per Characteristic325.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 300.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 6.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Internal ConfigurationJUNCTION CONTACT
Overall Diameter0.620 INCHES MAXIMUM IN
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Power Rating Per Characteristic20.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Current Rating Per Characteristic250.00 MILLIAMPERES MAXIMUM BASE CURRENT, DC AND 500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Mounting Facility Quantity2
Terminal Type and Quantity2 UNINSULATED WIRE LEAD AND 1 CASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5961-00-439-3749 INTERCHANGEABLE
Transistor
5961-00-553-9059 INTERCHANGEABLE
Transistor
5961-00-835-6138 INTERCHANGEABLE
Transistor
5961-00-850-8921 INTERCHANGEABLE
Transistor
5961-00-900-9811 INTERCHANGEABLE
Transistor
5961-00-927-50421853-0052 INTERCHANGEABLE
Transistor
Keysight Technologies Inc
Cross-Reference Index
Part NumberManufacturer
2N3739 Lacon Electronic Gmbh (DEU)
1854-0324 Hewlett-Packard Company Dba HP (USA)
RELEASE5109 Electronic Industries Association
1854-0324 Keysight Technologies, Inc. (USA)
10041302 Us Army Aviation and Missile Command (USA)
2043025 Tkms Hagenuk Marinekommunikation Gmbh (DEU)
1854-0324 Keysight Technologies Inc (USA)
317-3534-001 Raytheon Company (USA)
2N3739A Adelco Elektronik Gmbh (DEU)
2N3739 Electronic Industries Association
2N3739 Freescale Semiconductor, Inc. (USA)
2N3739 Adelco Elektronik Gmbh (DEU)
Related Parts
5961-00-439-3749INTERCHANGEABLE
TRANSISTOR
5961-00-553-9059INTERCHANGEABLE
TRANSISTOR
5961-00-835-6138INTERCHANGEABLE
TRANSISTOR
5961-00-850-8921INTERCHANGEABLE
TRANSISTOR
5961-00-900-9811INTERCHANGEABLE
TRANSISTOR
5961-00-927-5042INTERCHANGEABLE
TRANSISTOR
1853-0052

Frequently Asked Questions

What is NSN 5961-00-938-5100?

NSN 5961-00-938-5100 is a Transistor, manufactured by Lacon Electronic Gmbh, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-938-5100?

NSN 5961-00-938-5100 has 12 cross-referenced part numbers: 2N3739 (Lacon Electronic Gmbh), 1854-0324 (Hewlett-Packard Company Dba HP), RELEASE5109 (Electronic Industries Association), 1854-0324 (Keysight Technologies, Inc.), 10041302 (Us Army Aviation and Missile Command) and 7 more.

What NSN replaces 5961-00-938-5100?

There are 6 known substitutes for 5961-00-938-5100: 5961-00-439-3749, 5961-00-553-9059, 5961-00-835-6138 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N3739?

Key specifications for 2N3739: Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC; Specification/standard Data: 80131-RELEASE5109 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION; Internal Junction Configuration: NPN; Overall Length: 0.297 INCHES NOMINAL IN. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-938-5100 still in active supply?

NSN 5961-00-938-5100 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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