PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RELEASE2801Transistor

Electronic Industries Association · NSN 5961-00-842-9137 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-842-9137 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-842-9137. Primary manufacturer part number: RELEASE2801.
Features
  • Transistor — FSC 5961
  • Current Rating Per Characteristic: 500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-57
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Mounting Facility Quantity: 1
  • Features Provided: HERMETICALLY SEALED CASE
  • Overall Diameter: 0.460 INCHES MAXIMUM IN
  • 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 5961-00-842-9137, 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 Electronic Industries Association. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-842-9137
Primary Part NumberRELEASE2801
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerElectronic Industries Association
StatusCANCELLED
Current Rating Per Characteristic500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-57
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Mounting Facility Quantity1
Features ProvidedHERMETICALLY SEALED CASE
Overall Diameter0.460 INCHES MAXIMUM IN
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Terminal Type and Quantity1 THREADED STUD AND 1 TAB, SOLDER LUG
Internal Junction ConfigurationNPN
Internal ConfigurationJUNCTION CONTACT
Voltage Rating in Volts Per Characteristic80.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 6.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Nominal Thread Size0.138 INCHES IN
Semiconductor MaterialSILICON
Power Rating Per Characteristic1.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Specification/standard Data80131-RELEASE2801 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Mounting MethodTHREADED STUD(S)
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5961-00-857-8324534767-11 INTERCHANGEABLE
Semiconductor Device Set
Honeywell International, Inc Div Aerospace-Tucson
5961-00-884-0216 INTERCHANGEABLE
Transistor
5935-00-994-86832553047-2 INTERCHANGEABLE
Connector,receptacle,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
RELEASE2801 Electronic Industries Association
2N1049 Electronic Industries Association
2553047-2 Honeywell International Inc. Dba Honeywell International (USA)
2N1049 Texas Instruments Incorporated (USA)
2553047-2 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
723060-004 Raytheon Company Dba Raytheon (USA)
Related Parts
5961-00-857-8324INTERCHANGEABLE
SEMICONDUCTOR DEVICE SET
534767-11
5961-00-884-0216INTERCHANGEABLE
TRANSISTOR
5935-00-994-8683INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2553047-2

Frequently Asked Questions

What is NSN 5961-00-842-9137?

NSN 5961-00-842-9137 is a Transistor, manufactured by Electronic Industries Association, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-842-9137?

NSN 5961-00-842-9137 has 6 cross-referenced part numbers: RELEASE2801 (Electronic Industries Association), 2N1049 (Electronic Industries Association), 2553047-2 (Honeywell International Inc. Dba Honeywell International), 2N1049 (Texas Instruments Incorporated), 2553047-2 (Lockheed Martin Corporation Div Rms - Mitchel Field) and 1 more.

What NSN replaces 5961-00-842-9137?

There are 3 known substitutes for 5961-00-842-9137: 5961-00-857-8324, 5961-00-884-0216, 5935-00-994-8683. Verify interchangeability with system specifications before substitution.

What are the specifications of RELEASE2801?

Key specifications for RELEASE2801: Current Rating Per Characteristic: 500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC; Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-57; Overall Length: 0.215 INCHES MAXIMUM IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-842-9137 still in active supply?

NSN 5961-00-842-9137 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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