PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

JAN2N4858Transistor

Lacon Electronic Gmbh · NSN 5961-00-243-9159 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-243-9159 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-243-9159. Primary manufacturer part number: JAN2N4858.
Features
  • Transistor — FSC 5961
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Semiconductor Material: SILICON
  • Test Data Document: 81349-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.).
  • Mounting Method: TERMINAL
  • Specification/standard Data: 81349-MIL-PRF-19500/385 GOVERNMENT SPECIFICATION
  • Electrode Internally-Electrically Connected to Case: GATE
  • Current Rating Per Characteristic: 50.00 MILLIAMPERES MAXIMUM GATE CURRENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-243-9159, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 12 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
NSN5961-00-243-9159
Primary Part NumberJAN2N4858
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerLacon Electronic Gmbh
StatusCANCELLED
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Semiconductor MaterialSILICON
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.).
Mounting MethodTERMINAL
Specification/standard Data81349-MIL-PRF-19500/385 GOVERNMENT SPECIFICATION
Electrode Internally-Electrically Connected to CaseGATE
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM GATE CURRENT
Internal ConfigurationFIELD EFFECT
Terminal Length0.500 INCHES MINIMUM IN
Overall Diameter0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
Features ProvidedHERMETICALLY SEALED CASE
Power Rating Per Characteristic1.8 WATTS MAXIMUM TOTAL POWER DISSIPATION
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Voltage Rating in Volts Per Characteristic40.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 40.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND -40.0 MAXIMUM GATE TO SOURCE VOLTAGE
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5961-00-097-7487 INTERCHANGEABLE
Transistor
5961-00-160-5542 INTERCHANGEABLE
Transistor
5961-00-177-3356 INTERCHANGEABLE
Transistor
5961-00-230-7559 INTERCHANGEABLE
Transistor
5961-00-403-4293911416-3 INTERCHANGEABLE
Transistor
Bae Systems Information and Electronic Systems Integration Inc.
5961-00-403-5368 INTERCHANGEABLE
Transistor
5961-00-421-3040 INTERCHANGEABLE
Transistor
5961-00-476-6663 INTERCHANGEABLE
Transistor
5961-00-486-7025 INTERCHANGEABLE
Transistor
5961-00-493-5250 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
JAN2N4858 Lacon Electronic Gmbh (DEU)
5L5501-002-03 Hensoldt Sensors Gmbh Div Seps (DEU)
5961PL1372254 Jednolity Indeks Materialowy - Uniform Material Index (POL)
JAN2N4858A Adelco Elektronik Gmbh (DEU)
TX2N4858 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2N4858A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
352250008739 Thales Nederland (NLD)
4192800-309 Raytheon Company Div Rmd Strategic (USA)
2N4858 Freescale Semiconductor, Inc. (USA)
JAN2N4858 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
10198960 Nimikkeistokeskus Ncb Finland (FIN)
MIL-PRF-19500/385 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
94029-001 Century Data Systems (USA)
564716 Leonardo Germany Gmbh (DEU)
94029-001 Calcomp Inc (USA)
VG95212 T3-JAN 2N4858 Leonardo Germany Gmbh (DEU)
JAN2N4858 Adelco Elektronik Gmbh (DEU)
Related Parts
5961-00-097-7487INTERCHANGEABLE
TRANSISTOR
5961-00-160-5542INTERCHANGEABLE
TRANSISTOR
5961-00-177-3356INTERCHANGEABLE
TRANSISTOR
5961-00-230-7559INTERCHANGEABLE
TRANSISTOR
5961-00-403-4293INTERCHANGEABLE
TRANSISTOR
911416-3
5961-00-403-5368INTERCHANGEABLE
TRANSISTOR
5961-00-421-3040INTERCHANGEABLE
TRANSISTOR
5961-00-476-6663INTERCHANGEABLE
TRANSISTOR
5961-00-486-7025INTERCHANGEABLE
TRANSISTOR
5961-00-493-5250INTERCHANGEABLE
TRANSISTOR
5961-00-517-9416INTERCHANGEABLE
TRANSISTOR
5961-00-757-6526INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-00-243-9159?

NSN 5961-00-243-9159 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 5961-00-243-9159?

NSN 5961-00-243-9159 has 17 cross-referenced part numbers: JAN2N4858 (Lacon Electronic Gmbh), 5L5501-002-03 (Hensoldt Sensors Gmbh Div Seps), 5961PL1372254 (Jednolity Indeks Materialowy - Uniform Material Index), JAN2N4858A (Adelco Elektronik Gmbh), TX2N4858 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 12 more.

What NSN replaces 5961-00-243-9159?

There are 12 known substitutes for 5961-00-243-9159: 5961-00-097-7487, 5961-00-160-5542, 5961-00-177-3356 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of JAN2N4858?

Key specifications for JAN2N4858: Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD; Semiconductor Material: SILICON; Test Data Document: 81349-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.).; Mounting Method: TERMINAL. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-243-9159 still in active supply?

NSN 5961-00-243-9159 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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