PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1854-0079Transistor

Keysight Technologies Inc · NSN 5961-01-238-4134 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-238-4134 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-238-4134. Primary manufacturer part number: 1854-0079.
Features
  • Transistor — FSC 5961
  • Internal Configuration: JUNCTION CONTACT
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-5
  • Transfer Ratio: 160.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
  • Voltage Rating in Volts Per Characteristic: 350.0 MINIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN
  • Features Provided: HERMETICALLY SEALED CASE
  • Internal Junction Configuration: NPN
  • Current Rating Per Characteristic: 1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-238-4134, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-238-4134
Primary Part Number1854-0079
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerKeysight Technologies Inc
StatusACTIVE
Internal ConfigurationJUNCTION CONTACT
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-5
Transfer Ratio160.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
Voltage Rating in Volts Per Characteristic350.0 MINIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN
Features ProvidedHERMETICALLY SEALED CASE
Internal Junction ConfigurationNPN
Current Rating Per Characteristic1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Overall Diameter0.370 INCHES MAXIMUM IN
Terminal Length1.500 INCHES MINIMUM IN
Terminal Circle Diameter0.200 INCHES NOMINAL IN
Mounting MethodTERMINAL
Semiconductor MaterialSILICON
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Power Rating Per Characteristic5.0 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-022-5670 INTERCHANGEABLE
Transistor
5961-00-055-7897207026P1 INTERCHANGEABLE
Transistor
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5961-00-064-3237579R939H02 INTERCHANGEABLE
Transistor
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5961-00-116-8950352-0825-020 INTERCHANGEABLE
Transistor
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5961-00-137-8312 INTERCHANGEABLE
Transistor
5961-00-240-3007 INTERCHANGEABLE
Transistor
5961-00-489-202154000-90068-1 INTERCHANGEABLE
Transistor
Textron Systems Corporation Dba Textron Systems Corp
5961-00-862-8738 INTERCHANGEABLE
Transistor
5961-00-925-3762 INTERCHANGEABLE
Transistor
5961-01-057-006210182379 INTERCHANGEABLE
Transistor
Us Army Aviation and Missile Command
Cross-Reference Index
Part NumberManufacturer
1854-0079 PRIMARY Keysight Technologies Inc (USA)
1854-0079 Keysight Technologies, Inc. (USA)
2N3439 Freescale Semiconductor, Inc. (USA)
1854-0079 Hewlett-Packard Company Dba HP (USA)
480-009-3439 Xkd Corp Dba Display Solutions (USA)
480-009-3439 Aydin Displays, Inc. (USA)
2N3439 Renesas Electronics America Inc (USA)
S44238 Fairchild Semiconductor Corp (USA)
S44238 National Semiconductor Corporation (USA)
Related Parts
5961-00-022-5670INTERCHANGEABLE
TRANSISTOR
5961-00-055-7897INTERCHANGEABLE
TRANSISTOR
207026P1
5961-00-064-3237INTERCHANGEABLE
TRANSISTOR
579R939H02
5961-00-116-8950INTERCHANGEABLE
TRANSISTOR
352-0825-020
5961-00-137-8312INTERCHANGEABLE
TRANSISTOR
5961-00-240-3007INTERCHANGEABLE
TRANSISTOR
5961-00-489-2021INTERCHANGEABLE
TRANSISTOR
54000-90068-1
5961-00-862-8738INTERCHANGEABLE
TRANSISTOR
5961-00-925-3762INTERCHANGEABLE
TRANSISTOR
5961-01-057-0062INTERCHANGEABLE
TRANSISTOR
10182379
5961-01-105-1704INTERCHANGEABLE
TRANSISTOR
5961-01-157-9616INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-01-238-4134?

NSN 5961-01-238-4134 is a Transistor, manufactured by Keysight Technologies Inc, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-238-4134?

NSN 5961-01-238-4134 has 9 cross-referenced part numbers: 1854-0079 (Keysight Technologies Inc), 1854-0079 (Keysight Technologies, Inc.), 2N3439 (Freescale Semiconductor, Inc.), 1854-0079 (Hewlett-Packard Company Dba HP), 480-009-3439 (Xkd Corp Dba Display Solutions) and 4 more.

What NSN replaces 5961-01-238-4134?

There are 12 known substitutes for 5961-01-238-4134: 5961-00-022-5670, 5961-00-055-7897, 5961-00-064-3237 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1854-0079?

Key specifications for 1854-0079: Internal Configuration: JUNCTION CONTACT; Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-5; Transfer Ratio: 160.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER; Voltage Rating in Volts Per Characteristic: 350.0 MINIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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