PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1855-0425Transistor

Keysight Technologies Inc · NSN 5961-01-275-6577 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-275-6577 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-275-6577. Primary manufacturer part number: 1855-0425.
Features
  • Transistor — FSC 5961
  • Current Rating Per Characteristic: 15.00 MILLIAMPERES MAXIMUM DRAIN CURRENT
  • Mounting Method: TERMINAL
  • Voltage Rating in Volts Per Characteristic: 30.0 MINIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE
  • Power Rating Per Characteristic: 350.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-92
  • Material: PLASTIC ENCLOSURE
  • Internal Configuration: FIELD EFFECT
Applications
  • Applications requiring Plastic Enclosure construction
General Description

The Transistor, cataloged under National Stock Number 5961-01-275-6577, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-275-6577
Primary Part Number1855-0425
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerKeysight Technologies Inc
StatusACTIVE
Current Rating Per Characteristic15.00 MILLIAMPERES MAXIMUM DRAIN CURRENT
Mounting MethodTERMINAL
Voltage Rating in Volts Per Characteristic30.0 MINIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE
Power Rating Per Characteristic350.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-92
MaterialPLASTIC ENCLOSURE
Internal ConfigurationFIELD EFFECT
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Semiconductor MaterialSILICON
Terminal Length0.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
6615-00-180-8465230002 INTERCHANGEABLE
Seat,bail
Lockheed Martin Corporation Div Rms - Mitchel Field
5962-00-493-5968 INTERCHANGEABLE
Microcircuit,digital
4730-01-014-1078P5S-2 INTERCHANGEABLE
Clamp,hose
Punch-Lok Co Div Pt Punch-Lok
5961-01-021-6001K304-18 INTERCHANGEABLE
Transistor
Siliconix Incorporated Div Siliconix
5915-01-073-5809230-002 INTERCHANGEABLE
Filter,radio Frequency Interfere
Autek Systems Corp
5920-01-308-6298806349 INTERCHANGEABLE
Fuse,cartridge
Fluke Corp
5961-01-318-9702BC214 INTERCHANGEABLE
Transistor
Fairchild Semiconductor Corp
9515-01-459-2241A793-96,TYPE 304 INTERCHANGEABLE
Plate,floor,metal
American Society for Testing and Materials Dba Astm International
6515-01-574-2181J0304 INTERCHANGEABLE
Filter,anesthesia Gas
Jorgensen Laboratories, Inc. Dba Jorgensen Laboratories Inc
Cross-Reference Index
Part NumberManufacturer
1855-0425 PRIMARY Keysight Technologies Inc (USA)
622132619706 Ncb Hungary (honvedsegi Egyseges Termekkod) (HUN)
BC214C Freescale Semiconductor, Inc. (USA)
1855-0425 Hewlett-Packard Company Dba HP (USA)
1855-0425 Keysight Technologies, Inc. (USA)
E-304 Siliconix Incorporated Div Siliconix (USA)
230002 Wavetek Rf Products, Inc (USA)
J304 Siliconix Incorporated Div Siliconix (USA)
J304 National Semiconductor Corporation (USA)
Related Parts
6615-00-180-8465INTERCHANGEABLE
SEAT,BAIL
230002
5962-00-493-5968INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
4730-01-014-1078INTERCHANGEABLE
CLAMP,HOSE
P5S-2
5961-01-021-6001INTERCHANGEABLE
TRANSISTOR
K304-18
5915-01-073-5809INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
230-002
5920-01-308-6298INTERCHANGEABLE
FUSE,CARTRIDGE
806349
5961-01-318-9702INTERCHANGEABLE
TRANSISTOR
BC214
9515-01-459-2241INTERCHANGEABLE
PLATE,FLOOR,METAL
A793-96,TYPE 304
6515-01-574-2181INTERCHANGEABLE
FILTER,ANESTHESIA GAS
J0304

Frequently Asked Questions

What is NSN 5961-01-275-6577?

NSN 5961-01-275-6577 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 5961-01-275-6577?

NSN 5961-01-275-6577 has 9 cross-referenced part numbers: 1855-0425 (Keysight Technologies Inc), 622132619706 (Ncb Hungary (honvedsegi Egyseges Termekkod)), BC214C (Freescale Semiconductor, Inc.), 1855-0425 (Hewlett-Packard Company Dba HP), 1855-0425 (Keysight Technologies, Inc.) and 4 more.

What NSN replaces 5961-01-275-6577?

There are 9 known substitutes for 5961-01-275-6577: 6615-00-180-8465, 5962-00-493-5968, 4730-01-014-1078 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1855-0425?

Key specifications for 1855-0425: Current Rating Per Characteristic: 15.00 MILLIAMPERES MAXIMUM DRAIN CURRENT; Overall Width: 0.205 INCHES NOMINAL IN; Mounting Method: TERMINAL; Voltage Rating in Volts Per Characteristic: 30.0 MINIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE. 13 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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