PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40001221-000Transistor

Dne Technologies, Inc · NSN 5961-00-902-4664 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-902-4664 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-902-4664. Primary manufacturer part number: 40001221-000.
Features
  • Transistor — FSC 5961
  • Terminal Circle Diameter: 0.100 INCHES NOMINAL IN
  • Terminal Length: 0.500 INCHES MAXIMUM IN
  • Voltage Rating in Volts Per Characteristic: 25.0 MAXIMUM COLLECTOR TO BASE VOLTAGE, DC AND 25.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE, DC AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, DC
  • Internal Configuration: JUNCTION CONTACT
  • Power Rating Per Characteristic: 200.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Overall Diameter: 0.205 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-902-4664, 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 Dne Technologies, Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-902-4664
Primary Part Number40001221-000
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerDne Technologies, Inc
StatusCANCELLED
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Terminal Length0.500 INCHES MAXIMUM IN
Voltage Rating in Volts Per Characteristic25.0 MAXIMUM COLLECTOR TO BASE VOLTAGE, DC AND 25.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE, DC AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, DC
Internal ConfigurationJUNCTION CONTACT
Power Rating Per Characteristic200.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Overall Diameter0.205 INCHES MAXIMUM IN
Semiconductor MaterialSILICON
Mounting MethodTERMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
3110-00-555-55702251193 INTERCHANGEABLE
Bearing,ball,annular
Fairbanks Morse, Llc
Cross-Reference Index
Part NumberManufacturer
40001221-000 Dne Technologies, Inc (USA)
ST221A Dne Technologies, Inc (USA)
ST221 Dne Technologies, Inc (USA)
Related Parts
3110-00-555-5570INTERCHANGEABLE
BEARING,BALL,ANNULAR
2251193

Frequently Asked Questions

What is NSN 5961-00-902-4664?

NSN 5961-00-902-4664 is a Transistor, manufactured by Dne Technologies, Inc, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-902-4664?

NSN 5961-00-902-4664 has 3 cross-referenced part numbers: 40001221-000 (Dne Technologies, Inc), ST221A (Dne Technologies, Inc), ST221 (Dne Technologies, Inc).

What NSN replaces 5961-00-902-4664?

There is 1 known substitute for 5961-00-902-4664: 3110-00-555-5570. Verify interchangeability with system specifications before substitution.

What are the specifications of 40001221-000?

Key specifications for 40001221-000: Terminal Circle Diameter: 0.100 INCHES NOMINAL IN; Terminal Length: 0.500 INCHES MAXIMUM IN; Overall Length: 0.210 INCHES MAXIMUM IN; Voltage Rating in Volts Per Characteristic: 25.0 MAXIMUM COLLECTOR TO BASE VOLTAGE, DC AND 25.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE, DC AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, DC. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-902-4664 still in active supply?

NSN 5961-00-902-4664 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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