PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

128C499H02Semiconductor Device,thyristor

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 5961-00-480-2923 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-480-2923 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-480-2923. Primary manufacturer part number: 128C499H02.
Features
  • Semiconductor Device,thyristor — FSC 5961
  • Features Provided: HERMETICALLY SEALED CASE
  • Mounting Facility Quantity: 2
  • Terminal Type and Quantity: 1 THREADED STUD AND 2 UNINSULATED WIRE LEAD W/TERMINAL LUG
  • Nominal Thread Size: 0.190 INCHES IN
  • Maximum Operating Temp Per Measurement Point: 125.0 CELSIUS AMBIENT AIR DEGC
  • Mounting Method: THREADED STUD(S)
  • Power Rating Per Characteristic: 0.5 WATTS MAXIMUM PEAK GATE POWER-FORWARD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-00-480-2923, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5961-00-480-2923
Primary Part Number128C499H02
Item NameSemiconductor Device,thyristor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Features ProvidedHERMETICALLY SEALED CASE
Mounting Facility Quantity2
Terminal Type and Quantity1 THREADED STUD AND 2 UNINSULATED WIRE LEAD W/TERMINAL LUG
Nominal Thread Size0.190 INCHES IN
Maximum Operating Temp Per Measurement Point125.0 CELSIUS AMBIENT AIR DEGC
Mounting MethodTHREADED STUD(S)
Power Rating Per Characteristic0.5 WATTS MAXIMUM PEAK GATE POWER-FORWARD
Electrode Internally-Electrically Connected to CaseANODE
Semiconductor MaterialSILICON
Current Rating Per Characteristic2.00 AMPERES MAXIMUM PEAK NEGATIVE GATE CURRENT
Voltage Rating in Volts Per Characteristic60.0 MAXIMUM REPETITIVE PEAK REVERSE VOLTAGE
Thread Series DesignatorUNF
Overall Width Across Flats0.553 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2590-00-126-8421 INTERCHANGEABLE
Control Assembly,push-Pull
2810-00-386-445161365 INTERCHANGEABLE
Pipe,intake
Textron Lycoming Inc Williamsport Plant
4320-01-248-270061365 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Eaton Corporation Dba Eaton Inoac Div Eaton
Cross-Reference Index
Part NumberManufacturer
SCR551H2 Freescale Semiconductor, Inc. (USA)
128C499H02 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
61365 Intersil Communications Inc. (USA)
61365 Renesas Electronics America Inc (USA)
Related Parts
2590-00-126-8421INTERCHANGEABLE
CONTROL ASSEMBLY,PUSH-PULL
2810-00-386-4451INTERCHANGEABLE
PIPE,INTAKE
61365
4320-01-248-2700INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
61365

Frequently Asked Questions

What is NSN 5961-00-480-2923?

NSN 5961-00-480-2923 is a Semiconductor Device,thyristor, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-480-2923?

NSN 5961-00-480-2923 has 4 cross-referenced part numbers: SCR551H2 (Freescale Semiconductor, Inc.), 128C499H02 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 61365 (Intersil Communications Inc.), 61365 (Renesas Electronics America Inc).

What NSN replaces 5961-00-480-2923?

There are 3 known substitutes for 5961-00-480-2923: 2590-00-126-8421, 2810-00-386-4451, 4320-01-248-2700. Verify interchangeability with system specifications before substitution.

What are the specifications of 128C499H02?

Key specifications for 128C499H02: Features Provided: HERMETICALLY SEALED CASE; Mounting Facility Quantity: 2; Terminal Type and Quantity: 1 THREADED STUD AND 2 UNINSULATED WIRE LEAD W/TERMINAL LUG; Nominal Thread Size: 0.190 INCHES IN. 14 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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