PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N4859ATransistor

Microsemi Corp - Massachusetts · NSN 5961-00-757-6526 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-757-6526 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-757-6526. Primary manufacturer part number: 2N4859A.
Features
  • Transistor — FSC 5961
  • Terminal Circle Diameter: 0.100 INCHES NOMINAL IN
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Current Rating Per Characteristic: 50.00 MILLIAMPERES MAXIMUM GATE CURRENT
  • Power Rating Per Characteristic: 360.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
  • 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: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
  • Specification/standard Data: 81349-MIL-S-19500/385 GOVERNMENT SPECIFICATION
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-757-6526, 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 Microsemi Corp - Massachusetts. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 6 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
NSN5961-00-757-6526
Primary Part Number2N4859A
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerMicrosemi Corp - Massachusetts
StatusCANCELLED
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Terminal Length0.500 INCHES MINIMUM IN
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM GATE CURRENT
Power Rating Per Characteristic360.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
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 Diameter0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
Specification/standard Data81349-MIL-S-19500/385 GOVERNMENT SPECIFICATION
Electrode Internally-Electrically Connected to CaseGATE
Voltage Rating in Volts Per Characteristic30.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 30.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND -30.0 MAXIMUM GATE TO SOURCE VOLTAGE
Internal ConfigurationFIELD EFFECT
Features ProvidedHERMETICALLY SEALED CASE
Semiconductor MaterialSILICON
Mounting MethodTERMINAL
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5961-00-097-7487 INTERCHANGEABLE
Transistor
5961-00-160-5542 INTERCHANGEABLE
Transistor
5961-00-230-7559 INTERCHANGEABLE
Transistor
5961-00-243-9159 INTERCHANGEABLE
Transistor
5961-00-336-2033 INTERCHANGEABLE
Transistor
5961-00-365-8832 INTERCHANGEABLE
Transistor
5961-00-403-5368 INTERCHANGEABLE
Transistor
5961-00-421-3040 INTERCHANGEABLE
Transistor
5961-00-486-7025 INTERCHANGEABLE
Transistor
5961-00-493-5250 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
2N4859A Microsemi Corp - Massachusetts (USA)
SFB5246 Texas Instruments Incorporated (USA)
2N4859A Electronic Industries Association
MILS19500-385 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JANTX2N4859A Adelco Elektronik Gmbh (DEU)
2N4859A Texas Instruments Incorporated (USA)
RELEASE5715 Electronic Industries Association
723091-1 Raytheon Company Div Rmd Strategic (USA)
MIL-PRF-19500/385 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JANTX2N4859 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5961-00-097-7487INTERCHANGEABLE
TRANSISTOR
5961-00-160-5542INTERCHANGEABLE
TRANSISTOR
5961-00-230-7559INTERCHANGEABLE
TRANSISTOR
5961-00-243-9159INTERCHANGEABLE
TRANSISTOR
5961-00-336-2033INTERCHANGEABLE
TRANSISTOR
5961-00-365-8832INTERCHANGEABLE
TRANSISTOR
5961-00-403-5368INTERCHANGEABLE
TRANSISTOR
5961-00-421-3040INTERCHANGEABLE
TRANSISTOR
5961-00-486-7025INTERCHANGEABLE
TRANSISTOR
5961-00-493-5250INTERCHANGEABLE
TRANSISTOR
5961-00-517-9416INTERCHANGEABLE
TRANSISTOR
5961-00-777-3188INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-00-757-6526?

NSN 5961-00-757-6526 is a Transistor, manufactured by Microsemi Corp - Massachusetts, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-757-6526?

NSN 5961-00-757-6526 has 10 cross-referenced part numbers: 2N4859A (Microsemi Corp - Massachusetts), SFB5246 (Texas Instruments Incorporated), 2N4859A (Electronic Industries Association), MILS19500-385 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), JANTX2N4859A (Adelco Elektronik Gmbh) and 5 more.

What NSN replaces 5961-00-757-6526?

There are 12 known substitutes for 5961-00-757-6526: 5961-00-097-7487, 5961-00-160-5542, 5961-00-230-7559 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N4859A?

Key specifications for 2N4859A: Terminal Circle Diameter: 0.100 INCHES NOMINAL IN; Terminal Length: 0.500 INCHES MINIMUM IN; Current Rating Per Characteristic: 50.00 MILLIAMPERES MAXIMUM GATE CURRENT; Power Rating Per Characteristic: 360.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-757-6526 still in active supply?

NSN 5961-00-757-6526 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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