PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N4444Semiconductor Device,thyristor

Freescale Semiconductor, Inc. · NSN 5961-00-622-1240 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-622-1240 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-622-1240. Primary manufacturer part number: 2N4444.
Features
  • Semiconductor Device,thyristor — FSC 5961
  • Mounting Method: TERMINAL
  • Electrode Internally-Electrically Connected to Case: ANODE
  • Overall Diameter: 0.625 INCHES MAXIMUM IN
  • Current Rating Per Characteristic: 5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Semiconductor Material: SILICON
  • Features Provided: HERMETICALLY SEALED CASE
  • Maximum Operating Temp Per Measurement Point: 100.0 CELSIUS AMBIENT AIR DEGC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-00-622-1240, 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 Freescale Semiconductor, Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN5961-00-622-1240
Primary Part Number2N4444
Item NameSemiconductor Device,thyristor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerFreescale Semiconductor, Inc.
StatusACTIVE
Mounting MethodTERMINAL
Electrode Internally-Electrically Connected to CaseANODE
Overall Diameter0.625 INCHES MAXIMUM IN
Current Rating Per Characteristic5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Semiconductor MaterialSILICON
Features ProvidedHERMETICALLY SEALED CASE
Maximum Operating Temp Per Measurement Point100.0 CELSIUS AMBIENT AIR DEGC
Specification/standard Data80131-RELEASE5492 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Terminal Circle Diameter0.140 INCHES NOMINAL IN
Terminal Length0.230 INCHES MAXIMUM IN
Voltage Rating in Volts Per Characteristic600.0 MAXIMUM BREAKOVER VOLTAGE, DC
Terminal Type and Quantity3 TAB, SOLDER LUG
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5961-00-136-3959 INTERCHANGEABLE
Semiconductor Device,thyristor
5961-00-147-9588 INTERCHANGEABLE
Semiconductor Device,thyristor
5961-00-177-3624 INTERCHANGEABLE
Semiconductor Device,thyristor
Cross-Reference Index
Part NumberManufacturer
2N4444 Freescale Semiconductor, Inc. (USA)
2N4444 Electronic Industries Association
RELEASE5492 Electronic Industries Association
Related Parts
5961-00-136-3959INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-00-147-9588INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-00-177-3624INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR

Frequently Asked Questions

What is NSN 5961-00-622-1240?

NSN 5961-00-622-1240 is a Semiconductor Device,thyristor, manufactured by Freescale Semiconductor, Inc., classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-622-1240?

NSN 5961-00-622-1240 has 3 cross-referenced part numbers: 2N4444 (Freescale Semiconductor, Inc.), 2N4444 (Electronic Industries Association), RELEASE5492 (Electronic Industries Association).

What NSN replaces 5961-00-622-1240?

There are 3 known substitutes for 5961-00-622-1240: 5961-00-136-3959, 5961-00-147-9588, 5961-00-177-3624. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N4444?

Key specifications for 2N4444: Mounting Method: TERMINAL; Electrode Internally-Electrically Connected to Case: ANODE; Overall Diameter: 0.625 INCHES MAXIMUM IN; Overall Length: 0.420 INCHES MAXIMUM IN. 15 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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