PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MCR649-3Semiconductor Device,thyristor

Freescale Semiconductor, Inc. · NSN 5961-00-901-7403 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-901-7403 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-901-7403. Primary manufacturer part number: MCR649-3.
Features
  • Semiconductor Device,thyristor — FSC 5961
  • Voltage Rating in Volts Per Characteristic: 3.5 MAXIMUM GATE TRIGGER VOLTAGE, DC AND 0.7 MAXIMUM ON-STATE VOLTAGE, DC
  • Specification/standard Data: 80131-RELEASE3983 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
  • Maximum Operating Temp Per Measurement Point: 85.0 CELSIUS CASE DEGC
  • Mounting Method: UNTHREADED HOLE(S)
  • Current Rating Per Characteristic: 16.00 AMPERES MAXIMUM ON-STATE CURRENT, DC AND 40.00 MILLIAMPERES MAXIMUM GATE TRIGGER CURRENT, DC
  • Overall Diameter: 0.875 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-00-901-7403, 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 14 commercial cross-references from 5 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
NSN5961-00-901-7403
Primary Part NumberMCR649-3
Item NameSemiconductor Device,thyristor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerFreescale Semiconductor, Inc.
StatusCANCELLED
Voltage Rating in Volts Per Characteristic3.5 MAXIMUM GATE TRIGGER VOLTAGE, DC AND 0.7 MAXIMUM ON-STATE VOLTAGE, DC
Specification/standard Data80131-RELEASE3983 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Maximum Operating Temp Per Measurement Point85.0 CELSIUS CASE DEGC
Mounting MethodUNTHREADED HOLE(S)
Current Rating Per Characteristic16.00 AMPERES MAXIMUM ON-STATE CURRENT, DC AND 40.00 MILLIAMPERES MAXIMUM GATE TRIGGER CURRENT, DC
Overall Diameter0.875 INCHES MAXIMUM IN
Terminal Type and Quantity1 CASE AND 2 UNINSULATED WIRE LEAD W/TERMINAL LUG
Internal ConfigurationJUNCTION CONTACT
Features ProvidedHERMETICALLY SEALED CASE
Semiconductor MaterialSILICON
Mounting Facility Quantity2
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5961-00-126-1640 INTERCHANGEABLE
Semiconductor Device,thyristor
5961-00-903-8023 INTERCHANGEABLE
Semiconductor Device,thyristor
5961-00-945-53892N2578 INTERCHANGEABLE
Semiconductor Device,thyristor
Freescale Semiconductor, Inc.
Cross-Reference Index
Part NumberManufacturer
MCR649-3 Freescale Semiconductor, Inc. (USA)
AG0133332 Rohde & Schwarz Gmbh & Co. Kommanditgesellschaft Dba R & S (DEU)
MCR649P4 Freescale Semiconductor, Inc. (USA)
MCR649A4 Freescale Semiconductor, Inc. (USA)
2N2576 Motorola Inc. Dba Integrated Information Systems Group (USA)
MCR649AP4 Freescale Semiconductor, Inc. (USA)
RELEASE 3983 Electronic Industries Association
48D84242C01 Motorola Communications Group Parts Dept Div of Motorola Inc (USA)
48-84242C01 Motorola Communications Group Parts Dept Div of Motorola Inc (USA)
MCR649P-3 Freescale Semiconductor, Inc. (USA)
2N2576 Freescale Semiconductor, Inc. (USA)
SCR93-4 Freescale Semiconductor, Inc. (USA)
MCR649-4 Freescale Semiconductor, Inc. (USA)
2N2576 Electronic Industries Association
Related Parts
5961-00-126-1640INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-00-903-8023INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-00-945-5389INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
2N2578

Frequently Asked Questions

What is NSN 5961-00-901-7403?

NSN 5961-00-901-7403 is a Semiconductor Device,thyristor, manufactured by Freescale Semiconductor, Inc., classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-901-7403?

NSN 5961-00-901-7403 has 14 cross-referenced part numbers: MCR649-3 (Freescale Semiconductor, Inc.), AG0133332 (Rohde & Schwarz Gmbh & Co. Kommanditgesellschaft Dba R & S), MCR649P4 (Freescale Semiconductor, Inc.), MCR649A4 (Freescale Semiconductor, Inc.), 2N2576 (Motorola Inc. Dba Integrated Information Systems Group) and 9 more.

What NSN replaces 5961-00-901-7403?

There are 3 known substitutes for 5961-00-901-7403: 5961-00-126-1640, 5961-00-903-8023, 5961-00-945-5389. Verify interchangeability with system specifications before substitution.

What are the specifications of MCR649-3?

Key specifications for MCR649-3: Voltage Rating in Volts Per Characteristic: 3.5 MAXIMUM GATE TRIGGER VOLTAGE, DC AND 0.7 MAXIMUM ON-STATE VOLTAGE, DC; Specification/standard Data: 80131-RELEASE3983 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION; Electrode Internally-Electrically Connected to Case: COLLECTOR; Maximum Operating Temp Per Measurement Point: 85.0 CELSIUS CASE DEGC. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-901-7403 still in active supply?

NSN 5961-00-901-7403 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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