PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J204-18Transistor

Siliconix Incorporated Div Siliconix · NSN 5961-01-144-0483 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-144-0483 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-144-0483. Primary manufacturer part number: J204-18.
Features
  • Transistor — FSC 5961
  • Terminal Length: 0.400 INCHES NOMINAL IN
  • Mounting Method: TERMINAL
  • Power Rating Per Characteristic: 360.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
  • Current Rating Per Characteristic: 3.00 MILLIAMPERES MAXIMUM DRAIN CURRENT
  • Overall Diameter: 0.185 INCHES NOMINAL IN
  • Voltage Rating in Volts Per Characteristic: 40.0 MAXIMUM GATE TO SOURCE VOLTAGE
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-92
Applications
  • Applications requiring Plastic Enclosure construction
General Description

The Transistor, cataloged under National Stock Number 5961-01-144-0483, 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 Siliconix Incorporated Div Siliconix. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-144-0483
Primary Part NumberJ204-18
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSiliconix Incorporated Div Siliconix
StatusACTIVE
Terminal Length0.400 INCHES NOMINAL IN
Mounting MethodTERMINAL
Power Rating Per Characteristic360.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
Current Rating Per Characteristic3.00 MILLIAMPERES MAXIMUM DRAIN CURRENT
Overall Diameter0.185 INCHES NOMINAL IN
Voltage Rating in Volts Per Characteristic40.0 MAXIMUM GATE TO SOURCE VOLTAGE
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-92
Internal ConfigurationFIELD EFFECT
MaterialPLASTIC ENCLOSURE
Semiconductor MaterialSILICON
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Maximum Operating Temp Per Measurement Point135.0 CELSIUS AMBIENT AIR DEGC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6150-00-922-3742E204 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Simmonds Precision Products Inc
6105-01-361-8351E821 INTERCHANGEABLE
Motor,alternating Current
General Electric Co Motor Business Group
6520-01-450-2268E204 INTERCHANGEABLE
Pliers,dental
Dentronix Inc
Cross-Reference Index
Part NumberManufacturer
E204 Siliconix Incorporated Div Siliconix (USA)
J204-18 PRIMARY Siliconix Incorporated Div Siliconix (USA)
Related Parts
6150-00-922-3742INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
E204
6105-01-361-8351INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
E821
6520-01-450-2268INTERCHANGEABLE
PLIERS,DENTAL
E204

Frequently Asked Questions

What is NSN 5961-01-144-0483?

NSN 5961-01-144-0483 is a Transistor, manufactured by Siliconix Incorporated Div Siliconix, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-144-0483?

NSN 5961-01-144-0483 has 2 cross-referenced part numbers: E204 (Siliconix Incorporated Div Siliconix), J204-18 (Siliconix Incorporated Div Siliconix).

What NSN replaces 5961-01-144-0483?

There are 3 known substitutes for 5961-01-144-0483: 6150-00-922-3742, 6105-01-361-8351, 6520-01-450-2268. Verify interchangeability with system specifications before substitution.

What are the specifications of J204-18?

Key specifications for J204-18: Terminal Length: 0.400 INCHES NOMINAL IN; Mounting Method: TERMINAL; Power Rating Per Characteristic: 360.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION; Current Rating Per Characteristic: 3.00 MILLIAMPERES MAXIMUM DRAIN CURRENT. 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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