PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MCR2918-2Semiconductor Device,thyristor

Freescale Semiconductor, Inc. · NSN 5961-00-484-7978 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-484-7978 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-484-7978. Primary manufacturer part number: MCR2918-2.
Features
  • Semiconductor Device,thyristor — FSC 5961
  • Thread Series Designator: UNF
  • Current Rating Per Characteristic: 7.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Nominal Thread Size: 0.250 INCHES IN
  • Internal Configuration: JUNCTION CONTACT
  • Maximum Operating Temp Per Measurement Point: 100.0 CELSIUS JUNCTION DEGC
  • Power Rating Per Characteristic: 0.5 WATTS MAXIMUM PEAK GATE POWER DISSIPATION
  • Terminal Type and Quantity: 1 SOLDER STUD AND 2 TAB, SOLDER LUG
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-00-484-7978, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-484-7978
Primary Part NumberMCR2918-2
Item NameSemiconductor Device,thyristor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerFreescale Semiconductor, Inc.
StatusCANCELLED
Thread Series DesignatorUNF
Current Rating Per Characteristic7.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Nominal Thread Size0.250 INCHES IN
Internal ConfigurationJUNCTION CONTACT
Maximum Operating Temp Per Measurement Point100.0 CELSIUS JUNCTION DEGC
Power Rating Per Characteristic0.5 WATTS MAXIMUM PEAK GATE POWER DISSIPATION
Terminal Type and Quantity1 SOLDER STUD AND 2 TAB, SOLDER LUG
Electrode Internally-Electrically Connected to CaseANODE
Mounting MethodTHREADED STUD(S)
Voltage Rating in Volts Per Characteristic50.0 MAXIMUM BREAKOVER VOLTAGE, DC
Mounting Facility Quantity1
Specification/standard Data80131-RELEASE5700 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Overall Width Across Flats0.625 INCHES NOMINAL IN
Semiconductor MaterialSILICON
Features ProvidedHERMETICALLY SEALED CASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5961-00-069-5057 INTERCHANGEABLE
Semiconductor Device,thyristor
5961-00-152-8074 INTERCHANGEABLE
Semiconductor Device,thyristor
5961-00-233-7193 INTERCHANGEABLE
Semiconductor Device,thyristor
5961-00-450-1177 INTERCHANGEABLE
Semiconductor Device,thyristor
5961-00-493-0401 INTERCHANGEABLE
Semiconductor Device,thyristor
5961-00-935-5043 INTERCHANGEABLE
Semiconductor Device,thyristor
5961-01-033-9378 INTERCHANGEABLE
Semiconductor Device,thyristor
5961-01-045-8242 INTERCHANGEABLE
Semiconductor Device,thyristor
3120-01-167-0243344040 INTERCHANGEABLE
Bushing,sleeve
Lister Petter Ltd
Cross-Reference Index
Part NumberManufacturer
MCR2918-2 Freescale Semiconductor, Inc. (USA)
MCR3918-2A Freescale Semiconductor, Inc. (USA)
MCR3918-2 Freescale Semiconductor, Inc. (USA)
6L5522-508-512753 Leonardo Germany Gmbh (DEU)
2N5168 Freescale Semiconductor, Inc. (USA)
MCR3918-1 Freescale Semiconductor, Inc. (USA)
344040 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
2817034 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
RELEASE5700 Electronic Industries Association
2N5168 Electronic Industries Association
Related Parts
5961-00-069-5057INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-00-152-8074INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-00-233-7193INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-00-450-1177INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-00-493-0401INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-00-935-5043INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-01-033-9378INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-01-045-8242INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
3120-01-167-0243INTERCHANGEABLE
BUSHING,SLEEVE
344040

Frequently Asked Questions

What is NSN 5961-00-484-7978?

NSN 5961-00-484-7978 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 5961-00-484-7978?

NSN 5961-00-484-7978 has 10 cross-referenced part numbers: MCR2918-2 (Freescale Semiconductor, Inc.), MCR3918-2A (Freescale Semiconductor, Inc.), MCR3918-2 (Freescale Semiconductor, Inc.), 6L5522-508-512753 (Leonardo Germany Gmbh), 2N5168 (Freescale Semiconductor, Inc.) and 5 more.

What NSN replaces 5961-00-484-7978?

There are 9 known substitutes for 5961-00-484-7978: 5961-00-069-5057, 5961-00-152-8074, 5961-00-233-7193 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MCR2918-2?

Key specifications for MCR2918-2: Thread Series Designator: UNF; Current Rating Per Characteristic: 7.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC; Nominal Thread Size: 0.250 INCHES IN; Internal Configuration: JUNCTION CONTACT. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-484-7978 still in active supply?

NSN 5961-00-484-7978 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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