PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BFY90Transistor

Thales Components Corp Div Thales Components Corporation · NSN 5961-01-093-8344 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-093-8344 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-093-8344. Primary manufacturer part number: BFY90.
Features
  • Transistor — FSC 5961
  • Terminal Type and Quantity: 4 UNINSULATED WIRE LEAD
  • Overall Diameter: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
  • Mounting Method: TERMINAL
  • Current Rating Per Characteristic: 50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Terminal Circle Diameter: 0.100 INCHES NOMINAL IN
  • Semiconductor Material: SILICON
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-72
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-093-8344, 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 Thales Components Corp Div Thales Components Corporation. Government technical data includes 12 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-01-093-8344
Primary Part NumberBFY90
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerThales Components Corp Div Thales Components Corporation
StatusCANCELLED
Terminal Type and Quantity4 UNINSULATED WIRE LEAD
Overall Diameter0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
Mounting MethodTERMINAL
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Semiconductor MaterialSILICON
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-72
Internal ConfigurationJUNCTION CONTACT
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Voltage Rating in Volts Per Characteristic30.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 15.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 3.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Terminal Length0.500 INCHES MINIMUM IN
Power Rating Per Characteristic200.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
4920-00-065-8974226039 INTERCHANGEABLE
Lock,manual Control
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5961-00-103-6748 INTERCHANGEABLE
Transistor
5961-01-229-398510106132-101 INTERCHANGEABLE
Transistor
Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis
Cross-Reference Index
Part NumberManufacturer
BFY90 Freescale Semiconductor, Inc. (USA)
11784905 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
LT3772 Trw Electronics and Defense Sector Rf Devices (USA)
R-22-6039 Astronics Test Systems Inc (USA)
BFY90 British Sarozal Ltd (GBR)
BFY90 PRIMARY Thales Components Corp Div Thales Components Corporation (USA)
22-6039 Astronics Test Systems Inc (USA)
T00000BFY90Y0 Indra Sistemas, Sociedad Anonima (ESP)
BFY90 Ampex Systems Corp (USA)
Related Parts
4920-00-065-8974INTERCHANGEABLE
LOCK,MANUAL CONTROL
226039
5961-00-103-6748INTERCHANGEABLE
TRANSISTOR
5961-01-229-3985INTERCHANGEABLE
TRANSISTOR
10106132-101

Frequently Asked Questions

What is NSN 5961-01-093-8344?

NSN 5961-01-093-8344 is a Transistor, manufactured by Thales Components Corp Div Thales Components Corporation, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-01-093-8344?

NSN 5961-01-093-8344 has 9 cross-referenced part numbers: BFY90 (Freescale Semiconductor, Inc.), 11784905 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), LT3772 (Trw Electronics and Defense Sector Rf Devices), R-22-6039 (Astronics Test Systems Inc), BFY90 (British Sarozal Ltd) and 4 more.

What NSN replaces 5961-01-093-8344?

There are 3 known substitutes for 5961-01-093-8344: 4920-00-065-8974, 5961-00-103-6748, 5961-01-229-3985. Verify interchangeability with system specifications before substitution.

What are the specifications of BFY90?

Key specifications for BFY90: Overall Length: 0.170 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN; Terminal Type and Quantity: 4 UNINSULATED WIRE LEAD; Special Features: JUNCTION PATTERN ARRANGEMENT: NPN; Overall Diameter: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-01-093-8344 still in active supply?

NSN 5961-01-093-8344 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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