PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

63729Semiconductor Device,thyristor

Altra Industrial Motion Corp. · NSN 5961-00-126-7479 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-126-7479 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-126-7479. Primary manufacturer part number: 63729.
Features
  • Semiconductor Device,thyristor — FSC 5961
  • Voltage Rating in Volts Per Characteristic: 400.0 MAXIMUM BREAKOVER VOLTAGE, DC
  • Current Rating Per Characteristic: 16.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Overall Width Across Flats: 0.547 INCHES NOMINAL IN
  • Power Rating Per Characteristic: 0.5 WATTS MAXIMUM PEAK GATE POWER DISSIPATION
  • Semiconductor Material: SILICON
  • Mounting Method: THREADED STUD(S)
  • Maximum Operating Temp Per Measurement Point: 125.0 CELSIUS JUNCTION 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 5961-00-126-7479, 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 Altra Industrial Motion Corp.. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-126-7479
Primary Part Number63729
Item NameSemiconductor Device,thyristor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusCANCELLED
Voltage Rating in Volts Per Characteristic400.0 MAXIMUM BREAKOVER VOLTAGE, DC
Current Rating Per Characteristic16.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Overall Width Across Flats0.547 INCHES NOMINAL IN
Power Rating Per Characteristic0.5 WATTS MAXIMUM PEAK GATE POWER DISSIPATION
Semiconductor MaterialSILICON
Mounting MethodTHREADED STUD(S)
Maximum Operating Temp Per Measurement Point125.0 CELSIUS JUNCTION DEGC
Terminal Type and Quantity1 SOLDER STUD AND 2 TAB, SOLDER LUG
Unable to DecodeUNABLE TO DECODE
Thread Series DesignatorUNF
Nominal Thread Size0.250 INCHES IN
Specification/standard Data80131-RELEASE3188 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Features ProvidedHERMETICALLY SEALED CASE
Mounting Facility Quantity1
Internal ConfigurationJUNCTION CONTACT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
3010-00-327-165563729 INTERCHANGEABLE
Coupling,shaft,flexible
Aesys Technologies, L.l.c. Dba Jackson & Church Hvac Global Div York Shipley Global
5930-00-669-818325423211 INTERCHANGEABLE
Switch,thermostatic
Rtx Corporation Div Pratt & Whitney
5305-01-569-328715-061416-240 INTERCHANGEABLE
Screw,machine
Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company
Cross-Reference Index
Part NumberManufacturer
2N688 Electronic Industries Association
63729 PRIMARY Altra Industrial Motion Corp. (USA)
Related Parts
3010-00-327-1655INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
63729
5930-00-669-8183INTERCHANGEABLE
SWITCH,THERMOSTATIC
25423211
5305-01-569-3287INTERCHANGEABLE
SCREW,MACHINE
15-061416-240

Frequently Asked Questions

What is NSN 5961-00-126-7479?

NSN 5961-00-126-7479 is a Semiconductor Device,thyristor, manufactured by Altra Industrial Motion Corp., classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-126-7479?

NSN 5961-00-126-7479 has 2 cross-referenced part numbers: 2N688 (Electronic Industries Association), 63729 (Altra Industrial Motion Corp.).

What NSN replaces 5961-00-126-7479?

There are 3 known substitutes for 5961-00-126-7479: 3010-00-327-1655, 5930-00-669-8183, 5305-01-569-3287. Verify interchangeability with system specifications before substitution.

What are the specifications of 63729?

Key specifications for 63729: Voltage Rating in Volts Per Characteristic: 400.0 MAXIMUM BREAKOVER VOLTAGE, DC; Special Features: JUNCTION PATTERN ARRANGEMENT: NPN; Current Rating Per Characteristic: 16.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC; Overall Width Across Flats: 0.547 INCHES NOMINAL IN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-126-7479 still in active supply?

NSN 5961-00-126-7479 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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