PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1854-0637Transistor

Keysight Technologies Inc · NSN 5961-01-082-1976 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-082-1976 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-082-1976. Primary manufacturer part number: 1854-0637.
Features
  • Transistor — FSC 5961
  • Overall Diameter: 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
  • Mounting Method: TERMINAL
  • Terminal Length: 1.500 INCHES MINIMUM IN
  • Power Rating Per Characteristic: 800.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
  • Internal Configuration: JUNCTION CONTACT
  • Voltage Rating in Volts Per Characteristic: 40.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN
  • Current Rating Per Characteristic: 800.00 MILLIAMPERES 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 5961-01-082-1976, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 11 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
NSN5961-01-082-1976
Primary Part Number1854-0637
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerKeysight Technologies Inc
StatusACTIVE
Overall Diameter0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
Mounting MethodTERMINAL
Terminal Length1.500 INCHES MINIMUM IN
Power Rating Per Characteristic800.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
Internal ConfigurationJUNCTION CONTACT
Voltage Rating in Volts Per Characteristic40.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN
Current Rating Per Characteristic800.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-5
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Semiconductor MaterialSILICON
Features ProvidedHERMETICALLY SEALED CASE
Terminal Circle Diameter0.200 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-050-7499 INTERCHANGEABLE
Transistor
5961-00-408-4029352-0431-000 INTERCHANGEABLE
Transistor
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5961-00-433-1616 INTERCHANGEABLE
Transistor
5961-00-535-4502247ASC1226-001 INTERCHANGEABLE
Transistor
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
5961-00-724-20982459394-2 INTERCHANGEABLE
Transistor
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5961-00-949-1432 INTERCHANGEABLE
Transistor
5961-00-985-9068 INTERCHANGEABLE
Transistor
5961-00-990-2264 INTERCHANGEABLE
Transistor
5961-01-027-075720-00866-004 INTERCHANGEABLE
Transistor
Raytheon Company
5961-01-042-3339618-4921-102 INTERCHANGEABLE
Transistor
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
Cross-Reference Index
Part NumberManufacturer
1854-0637 Keysight Technologies, Inc. (USA)
2N2219A Halliburton Geophysical Services Inc (USA)
1854-0637 Hewlett-Packard Company Dba HP (USA)
2N2219A Freescale Semiconductor, Inc. (USA)
2N2219 National Semiconductor Corporation (USA)
2N2219A Texas Instruments Incorporated (USA)
2N2219A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2N2219 Freescale Semiconductor, Inc. (USA)
2N2219A Central Semiconductor, Llc Dba Central Semiconductor Corp (USA)
A3250027-1 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
2N2219A Fairchild Semiconductor Corp (USA)
2N2219A National Semiconductor Corporation (USA)
2N2219 Fairchild Semiconductor Corp (USA)
1854-0637 PRIMARY Keysight Technologies Inc (USA)
Related Parts
5961-00-050-7499INTERCHANGEABLE
TRANSISTOR
5961-00-408-4029INTERCHANGEABLE
TRANSISTOR
352-0431-000
5961-00-433-1616INTERCHANGEABLE
TRANSISTOR
5961-00-535-4502INTERCHANGEABLE
TRANSISTOR
247ASC1226-001
5961-00-724-2098INTERCHANGEABLE
TRANSISTOR
2459394-2
5961-00-949-1432INTERCHANGEABLE
TRANSISTOR
5961-00-985-9068INTERCHANGEABLE
TRANSISTOR
5961-00-990-2264INTERCHANGEABLE
TRANSISTOR
5961-01-027-0757INTERCHANGEABLE
TRANSISTOR
20-00866-004
5961-01-042-3339INTERCHANGEABLE
TRANSISTOR
618-4921-102
5961-01-060-5407INTERCHANGEABLE
TRANSISTOR
2N2219A
5961-01-080-0425INTERCHANGEABLE
TRANSISTOR
L02809

Frequently Asked Questions

What is NSN 5961-01-082-1976?

NSN 5961-01-082-1976 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 5961-01-082-1976?

NSN 5961-01-082-1976 has 14 cross-referenced part numbers: 1854-0637 (Keysight Technologies, Inc.), 2N2219A (Halliburton Geophysical Services Inc), 1854-0637 (Hewlett-Packard Company Dba HP), 2N2219A (Freescale Semiconductor, Inc.), 2N2219 (National Semiconductor Corporation) and 9 more.

What NSN replaces 5961-01-082-1976?

There are 12 known substitutes for 5961-01-082-1976: 5961-00-050-7499, 5961-00-408-4029, 5961-00-433-1616 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1854-0637?

Key specifications for 1854-0637: Overall Diameter: 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN; Mounting Method: TERMINAL; Terminal Length: 1.500 INCHES MINIMUM IN; Power Rating Per Characteristic: 800.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION. 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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