PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1855-0241Transistor

Keysight Technologies Inc · NSN 5961-01-082-0058 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-082-0058 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-082-0058. Primary manufacturer part number: 1855-0241.
Features
  • Transistor — FSC 5961
  • Overall Diameter: 0.230 INCHES MAXIMUM IN
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-72
  • Internal Configuration: FIELD EFFECT
  • Semiconductor Material: SILICON
  • Features Provided: HERMETICALLY SEALED CASE
  • Terminal Circle Diameter: 0.100 INCHES NOMINAL IN
  • Terminal Length: 0.500 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-082-0058, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-082-0058
Primary Part Number1855-0241
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerKeysight Technologies Inc
StatusACTIVE
Overall Diameter0.230 INCHES MAXIMUM IN
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-72
Internal ConfigurationFIELD EFFECT
Semiconductor MaterialSILICON
Features ProvidedHERMETICALLY SEALED CASE
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Terminal Length0.500 INCHES NOMINAL IN
Terminal Type and Quantity4 UNINSULATED WIRE LEAD
Power Rating Per Characteristic300.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
Voltage Rating in Volts Per Characteristic20.0 MAXIMUM BREAKDOWN VOLTAGE, DRAIN-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE
Current Rating Per Characteristic20.00 MILLIAMPERES MAXIMUM DRAIN CURRENT
Mounting MethodTERMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4730-00-107-3017SD21 INTERCHANGEABLE
Strainer Body,sediment
Gross Mechanical Laboratories Inc
2815-00-517-95584341182 INTERCHANGEABLE
Cylinder Sleeve
Agco Corp Parts Opn
5930-00-652-2456SD215 INTERCHANGEABLE
Switch,push
Sensata Technologies, Inc. Div Sensata Attleboro
5961-01-068-51900N205279 INTERCHANGEABLE
Semiconductor Device,diode
National Security Agency
6665-01-071-7572SD34T24VDC INTERCHANGEABLE
Alarm,gas,automatic
Fire-Lite Alarms Inc
5961-01-330-65118503868-415 INTERCHANGEABLE
Transistor
Honeywell International Inc. Dba Honeywell International
5961-01-412-9971 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
SD21 Keysight Technologies, Inc. (USA)
440-7447 Nimikkeistokeskus Ncb Finland (FIN)
1855-0241 Keysight Technologies, Inc. (USA)
SD21 Keysight Technologies Inc (USA)
1855-0241 PRIMARY Keysight Technologies Inc (USA)
1855-0241 Hewlett-Packard Company Dba HP (USA)
SD215DE Signet Scientific Co (USA)
SD215 Philips Semiconductors Inc (USA)
SDF9215 Solitron Devices, Inc. (USA)
Related Parts
4730-00-107-3017INTERCHANGEABLE
STRAINER BODY,SEDIMENT
SD21
2815-00-517-9558INTERCHANGEABLE
CYLINDER SLEEVE
4341182
5930-00-652-2456INTERCHANGEABLE
SWITCH,PUSH
SD215
5961-01-068-5190INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
0N205279
6665-01-071-7572INTERCHANGEABLE
ALARM,GAS,AUTOMATIC
SD34T24VDC
5961-01-330-6511INTERCHANGEABLE
TRANSISTOR
8503868-415
5961-01-412-9971INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-01-082-0058?

NSN 5961-01-082-0058 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 5961-01-082-0058?

NSN 5961-01-082-0058 has 9 cross-referenced part numbers: SD21 (Keysight Technologies, Inc.), 440-7447 (Nimikkeistokeskus Ncb Finland), 1855-0241 (Keysight Technologies, Inc.), SD21 (Keysight Technologies Inc), 1855-0241 (Keysight Technologies Inc) and 4 more.

What NSN replaces 5961-01-082-0058?

There are 7 known substitutes for 5961-01-082-0058: 4730-00-107-3017, 2815-00-517-9558, 5930-00-652-2456 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1855-0241?

Key specifications for 1855-0241: Overall Diameter: 0.230 INCHES MAXIMUM IN; Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-72; Internal Configuration: FIELD EFFECT; Special Features: MINIMUM VOLTAGE. 14 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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