PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1853-0081Transistor

Keysight Technologies Inc · NSN 5961-00-780-8368 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-780-8368 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-780-8368. Primary manufacturer part number: 1853-0081.
Features
  • Transistor — FSC 5961
  • Maximum Operating Temp Per Measurement Point: 125.0 CELSIUS JUNCTION DEGC
  • Mounting Method: TERMINAL
  • Internal Configuration: JUNCTION CONTACT
  • Specification/standard Data: 80131-RELEASE5285 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
  • Current Rating Per Characteristic: 50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Overall Diameter: 0.210 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-780-8368, 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 Keysight Technologies Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 22 commercial cross-references from 17 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-780-8368
Primary Part Number1853-0081
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerKeysight Technologies Inc
StatusCANCELLED
Maximum Operating Temp Per Measurement Point125.0 CELSIUS JUNCTION DEGC
Mounting MethodTERMINAL
Internal ConfigurationJUNCTION CONTACT
Specification/standard Data80131-RELEASE5285 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Overall Diameter0.210 INCHES MAXIMUM IN
Semiconductor MaterialSILICON
Terminal Length0.400 INCHES MINIMUM IN
Terminal Circle Diameter0.100 INCHES MAXIMUM IN
Power Rating Per Characteristic200.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
Features ProvidedHERMETICALLY SEALED CASE
Voltage Rating in Volts Per Characteristic12.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 12.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 4.5 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5961-00-021-7849 INTERCHANGEABLE
Transistor
5961-00-246-2427 INTERCHANGEABLE
Transistor
5961-00-401-6209151-0221-00 INTERCHANGEABLE
Transistor
Tektronix, Inc.
5961-00-487-8132200022 INTERCHANGEABLE
Transistor
Astronics Test Systems Inc
5961-01-050-954015-05321-00 INTERCHANGEABLE
Transistor
Compaq Federal Llc
Cross-Reference Index
Part NumberManufacturer
1853-0081 Keysight Technologies Inc (USA)
2N4258 National Semiconductor Corporation (USA)
2N4258 Freescale Semiconductor, Inc. (USA)
JAN2N4258 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2N4258 Fairchild Semiconductor Corp Components Group Sub of Schlumberger Ltd (USA)
5961007808368 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
1853-0081 Keysight Technologies, Inc. (USA)
2N4258 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1853-0081 Hewlett-Packard Company Dba HP (USA)
2N4258 Sensor Systems, L.l.c. Dba Sensor Systems Llc (USA)
S22079 Fairchild Semiconductor Corp (USA)
RELEASE 5285 Electronic Industries Association
2N4258 Electronic Industries Association
2N4258 Renesas Electronics America Inc (USA)
2N4258 Texas Instruments Incorporated (USA)
200142580 Safran Data Systems (FRA)
DEC4258 Compaq Federal Llc (USA)
SPS246 Freescale Semiconductor, Inc. (USA)
2N4258 Fairchild Semiconductor Corp (USA)
40002358-000 Dne Technologies, Inc (USA)
Related Parts
5961-00-021-7849INTERCHANGEABLE
TRANSISTOR
5961-00-246-2427INTERCHANGEABLE
TRANSISTOR
5961-00-401-6209INTERCHANGEABLE
TRANSISTOR
151-0221-00
5961-00-487-8132INTERCHANGEABLE
TRANSISTOR
200022
5961-01-050-9540INTERCHANGEABLE
TRANSISTOR
15-05321-00

Frequently Asked Questions

What is NSN 5961-00-780-8368?

NSN 5961-00-780-8368 is a Transistor, manufactured by Keysight Technologies Inc, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-780-8368?

NSN 5961-00-780-8368 has 22 cross-referenced part numbers: 1853-0081 (Keysight Technologies Inc), 2N4258 (National Semiconductor Corporation), 2N4258 (Freescale Semiconductor, Inc.), JAN2N4258 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 2N4258 (Fairchild Semiconductor Corp Components Group Sub of Schlumberger Ltd) and 17 more.

What NSN replaces 5961-00-780-8368?

There are 5 known substitutes for 5961-00-780-8368: 5961-00-021-7849, 5961-00-246-2427, 5961-00-401-6209 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1853-0081?

Key specifications for 1853-0081: Maximum Operating Temp Per Measurement Point: 125.0 CELSIUS JUNCTION DEGC; Overall Length: 0.250 INCHES MAXIMUM IN; Mounting Method: TERMINAL; Internal Configuration: JUNCTION CONTACT. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-780-8368 still in active supply?

NSN 5961-00-780-8368 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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