PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

U290Transistor

Siliconix Incorporated Div Siliconix · NSN 5961-01-085-6601 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-085-6601 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-085-6601. Primary manufacturer part number: U290.
Features
  • Transistor — FSC 5961
  • Current Rating Per Characteristic: 1.50 AMPERES MAXIMUM DRAIN CURRENT AND 100.00 MILLIAMPERES MAXIMUM GATE CURRENT
  • Overall Diameter: 0.195 INCHES MAXIMUM IN
  • Semiconductor Material: SILICON
  • Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS AMBIENT AIR DEGC
  • Power Rating Per Characteristic: 300.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
  • Internal Configuration: FIELD EFFECT
  • Voltage Rating in Volts Per Characteristic: 30.0 MAXIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-085-6601, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-085-6601
Primary Part NumberU290
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSiliconix Incorporated Div Siliconix
StatusACTIVE
Current Rating Per Characteristic1.50 AMPERES MAXIMUM DRAIN CURRENT AND 100.00 MILLIAMPERES MAXIMUM GATE CURRENT
Overall Diameter0.195 INCHES MAXIMUM IN
Semiconductor MaterialSILICON
Maximum Operating Temp Per Measurement Point150.0 CELSIUS AMBIENT AIR DEGC
Power Rating Per Characteristic300.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
Internal ConfigurationFIELD EFFECT
Voltage Rating in Volts Per Characteristic30.0 MAXIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-52
Mounting MethodTERMINAL
Features ProvidedHERMETICALLY SEALED CASE
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Terminal Length0.500 INCHES MINIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5935-00-815-3219 INTERCHANGEABLE
Connector,plug,electrical
Cross-Reference Index
Part NumberManufacturer
SS-20274-1 Leonardo Mw Ltd (GBR)
27033100210 Sapa Operaciones SL (ESP)
SS-20274-1 G E C Marconi Communications Ltd (GBR)
CT0003-001 Northrop Grumman Corp Electronic Systems Defensive System Div (USA)
315069-1 Northrop Grumman Systems Corporation Div Es Defensive Systems Division (USA)
315069-1 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA)
U290 PRIMARY Siliconix Incorporated Div Siliconix (USA)
Related Parts
5935-00-815-3219INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL

Frequently Asked Questions

What is NSN 5961-01-085-6601?

NSN 5961-01-085-6601 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 5961-01-085-6601?

NSN 5961-01-085-6601 has 7 cross-referenced part numbers: SS-20274-1 (Leonardo Mw Ltd), 27033100210 (Sapa Operaciones SL), SS-20274-1 (G E C Marconi Communications Ltd), CT0003-001 (Northrop Grumman Corp Electronic Systems Defensive System Div), 315069-1 (Northrop Grumman Systems Corporation Div Es Defensive Systems Division) and 2 more.

What NSN replaces 5961-01-085-6601?

There is 1 known substitute for 5961-01-085-6601: 5935-00-815-3219. Verify interchangeability with system specifications before substitution.

What are the specifications of U290?

Key specifications for U290: Current Rating Per Characteristic: 1.50 AMPERES MAXIMUM DRAIN CURRENT AND 100.00 MILLIAMPERES MAXIMUM GATE CURRENT; Overall Diameter: 0.195 INCHES MAXIMUM IN; Semiconductor Material: SILICON; Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS AMBIENT AIR DEGC. 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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