PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MCR2818R2Semiconductor Device,thyristor

Freescale Semiconductor, Inc. · NSN 5961-00-450-1177 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-450-1177 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-450-1177. Primary manufacturer part number: MCR2818R2.
Features
  • Semiconductor Device,thyristor — FSC 5961
  • Overall Diameter: 0.635 INCHES MAXIMUM IN
  • Electrode Internally-Electrically Connected to Case: ANODE
  • Mounting Method: TERMINAL
  • Features Provided: HERMETICALLY SEALED CASE
  • Current Rating Per Characteristic: 240.00 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
  • Semiconductor Material: SILICON
  • Maximum Operating Temp Per Measurement Point: 100.0 CELSIUS CASE DEGC
Applications
  • Applications requiring Glass Enclosure construction
General Description

The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-00-450-1177, 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 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-450-1177
Primary Part NumberMCR2818R2
Item NameSemiconductor Device,thyristor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerFreescale Semiconductor, Inc.
StatusCANCELLED
Overall Diameter0.635 INCHES MAXIMUM IN
Electrode Internally-Electrically Connected to CaseANODE
Mounting MethodTERMINAL
Features ProvidedHERMETICALLY SEALED CASE
Current Rating Per Characteristic240.00 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
Semiconductor MaterialSILICON
Maximum Operating Temp Per Measurement Point100.0 CELSIUS CASE DEGC
Power Rating Per Characteristic500.0 MILLIWATTS MAXIMUM PEAK GATE POWER DISSIPATION
Terminal Type and Quantity2 TAB, SOLDER LUG AND 1 CASE
Specification/standard Data80131-RELEASE5700 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
MaterialGLASS ENCLOSURE
Voltage Rating in Volts Per Characteristic200.0 MAXIMUM BREAKOVER VOLTAGE, DC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5961-00-069-5057 INTERCHANGEABLE
Semiconductor Device,thyristor
5945-00-201-78341756222 INTERCHANGEABLE
Flasher,thermal
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5961-00-233-7193 INTERCHANGEABLE
Semiconductor Device,thyristor
5961-00-484-7978 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
5930-01-062-0690LS-29385 INTERCHANGEABLE
Switch,fuel Level
Setra Systems, Inc. Dba Gems Sensors
7310-01-519-6816 INTERCHANGEABLE
Tee Spray
4820-01-708-291972508-1 INTERCHANGEABLE
Valve,rotary,selector
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
MCR2818R2 Freescale Semiconductor, Inc. (USA)
2N5165R Electronic Industries Association
MCR2818R4 Freescale Semiconductor, Inc. (USA)
725081 Systron-Donner Corp Microwave/instrument Div (USA)
RELEASE5700 Electronic Industries Association
2N5165R Freescale Semiconductor, Inc. (USA)
Related Parts
5961-00-069-5057INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5945-00-201-7834INTERCHANGEABLE
FLASHER,THERMAL
1756222
5961-00-233-7193INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-00-484-7978INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-00-493-0401INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-00-935-5043INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-01-033-9378INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5930-01-062-0690INTERCHANGEABLE
SWITCH,FUEL LEVEL
LS-29385
7310-01-519-6816INTERCHANGEABLE
TEE SPRAY
4820-01-708-2919INTERCHANGEABLE
VALVE,ROTARY,SELECTOR
72508-1

Frequently Asked Questions

What is NSN 5961-00-450-1177?

NSN 5961-00-450-1177 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 5961-00-450-1177?

NSN 5961-00-450-1177 has 6 cross-referenced part numbers: MCR2818R2 (Freescale Semiconductor, Inc.), 2N5165R (Electronic Industries Association), MCR2818R4 (Freescale Semiconductor, Inc.), 725081 (Systron-Donner Corp Microwave/instrument Div), RELEASE5700 (Electronic Industries Association) and 1 more.

What NSN replaces 5961-00-450-1177?

There are 10 known substitutes for 5961-00-450-1177: 5961-00-069-5057, 5945-00-201-7834, 5961-00-233-7193 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MCR2818R2?

Key specifications for MCR2818R2: Overall Diameter: 0.635 INCHES MAXIMUM IN; Electrode Internally-Electrically Connected to Case: ANODE; Mounting Method: TERMINAL; Features Provided: HERMETICALLY SEALED CASE. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-450-1177 still in active supply?

NSN 5961-00-450-1177 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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