PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N657ATransistor

Central Semiconductor, Llc Dba Central Semiconductor Corp · NSN 5961-00-806-8309 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-806-8309 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-806-8309. Primary manufacturer part number: 2N657A.
Features
  • Transistor — FSC 5961
  • Terminal Length: 1.500 INCHES MINIMUM IN
  • Current Rating Per Characteristic: 250.00 MILLIAMPERES MAXIMUM BASE CURRENT, DC AND 500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Semiconductor Material: SILICON
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC
  • Overall Diameter: 0.370 INCHES MAXIMUM IN
  • Voltage Rating in Volts Per Characteristic: 100.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 100.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 8.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-806-8309, 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 Central Semiconductor, Llc Dba Central Semiconductor Corp. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 23 commercial cross-references from 21 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
NSN5961-00-806-8309
Primary Part Number2N657A
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerCentral Semiconductor, Llc Dba Central Semiconductor Corp
StatusCANCELLED
Terminal Length1.500 INCHES MINIMUM IN
Current Rating Per Characteristic250.00 MILLIAMPERES MAXIMUM BASE CURRENT, DC AND 500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Semiconductor MaterialSILICON
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Overall Diameter0.370 INCHES MAXIMUM IN
Voltage Rating in Volts Per Characteristic100.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 100.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 8.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Terminal Circle Diameter0.200 INCHES NOMINAL IN
Internal ConfigurationJUNCTION CONTACT
Specification/standard Data80131-RELEASE3021 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Features ProvidedHERMETICALLY SEALED CASE
Mounting MethodTERMINAL
Power Rating Per Characteristic1.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5961-00-043-1335 INTERCHANGEABLE
Transistor
5961-00-245-67321261915-70 INTERCHANGEABLE
Transistor
Honeywell Intl Inc Defense Avionics Systems
5961-00-420-28732N657A INTERCHANGEABLE
Transistor
Texas Instruments Incorporated
5306-00-426-30801A5822 INTERCHANGEABLE
Bolt,machine
Caterpillar Inc Div Caterpillar Defense
5961-00-724-6904 INTERCHANGEABLE
Transistor
5961-00-729-27862N656A INTERCHANGEABLE
Transistor
Semiconductor Technology, Inc. Dba Semiconductor Technology Inc
Cross-Reference Index
Part NumberManufacturer
2N657A PRIMARY Central Semiconductor, Llc Dba Central Semiconductor Corp (USA)
GTB816BK1 Northrop Grumman Systems Corporation (USA)
2N657A Gilbert Engineering Co Inc/incon Sub of Transitron Electronic Corp (USA)
1261915-70 Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA)
RELEASE3021 Electronic Industries Association
2N657AA Adelco Elektronik Gmbh (DEU)
2N657A General Electric Co Electronic Components Division of Electronic Atomic and Defense Systems Group
1532887-4 Allied Signal Inc Aerospace Equipment Systems Eatontown Site (USA)
2N657A Silicon Transistor Corporation Dba Same (USA)
2N657A Electronic Transistors Corp (USA)
2N657A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2N657A Electronic Industries Association
7901841-001 General Motors Corp (USA)
2N657A Texas Instruments Incorporated (USA)
2N657A Solid State Devices, Inc (USA)
GT816BK1 Northrop Grumman Systems Corporation (USA)
2N657A PRIMARY Osi Optoelectronics, Inc Dba Semicoa (USA)
C1619 Howell Instruments, Inc. Dba Howell Instruments Inc (USA)
2N657A General Electric Co Semi-Conductor Products Dept (USA)
1532887-4 The Boeing Company (USA)
Related Parts
5961-00-043-1335INTERCHANGEABLE
TRANSISTOR
5961-00-245-6732INTERCHANGEABLE
TRANSISTOR
1261915-70
5961-00-420-2873INTERCHANGEABLE
TRANSISTOR
2N657A
5306-00-426-3080INTERCHANGEABLE
BOLT,MACHINE
1A5822
5961-00-724-6904INTERCHANGEABLE
TRANSISTOR
5961-00-729-2786INTERCHANGEABLE
TRANSISTOR
2N656A

Frequently Asked Questions

What is NSN 5961-00-806-8309?

NSN 5961-00-806-8309 is a Transistor, manufactured by Central Semiconductor, Llc Dba Central Semiconductor Corp, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-806-8309?

NSN 5961-00-806-8309 has 23 cross-referenced part numbers: 2N657A (Central Semiconductor, Llc Dba Central Semiconductor Corp), GTB816BK1 (Northrop Grumman Systems Corporation), 2N657A (Gilbert Engineering Co Inc/incon Sub of Transitron Electronic Corp), 1261915-70 (Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems), RELEASE3021 (Electronic Industries Association) and 18 more.

What NSN replaces 5961-00-806-8309?

There are 6 known substitutes for 5961-00-806-8309: 5961-00-043-1335, 5961-00-245-6732, 5961-00-420-2873 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N657A?

Key specifications for 2N657A: Terminal Length: 1.500 INCHES MINIMUM IN; Current Rating Per Characteristic: 250.00 MILLIAMPERES MAXIMUM BASE CURRENT, DC AND 500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC; Semiconductor Material: SILICON; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-806-8309 still in active supply?

NSN 5961-00-806-8309 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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