PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

127A905F01Semiconductor Device,diode

Electric Machinery Dresser Industries Inc · NSN 5961-00-866-4821 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-866-4821 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-866-4821. Primary manufacturer part number: 127A905F01.
Features
  • Semiconductor Device,diode — FSC 5961
  • Material: SILICON SEMICONDUCTOR
  • Terminal Type and Quantity: 1 TAB, SOLDER LUG AND 1 THREADED STUD
  • Mounting Facility Quantity: 1
  • Material: GLASS ENCLOSURE
  • Current Rating Per Characteristic: 40.00 AMPERES MAXIMUM FORWARD CURRENT, AVERAGE
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: DO-5
  • Power Rating Per Characteristic: 68.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
  • Applications requiring Silicon Semiconductor construction
General Description

The Semiconductor Device,diode, cataloged under National Stock Number 5961-00-866-4821, 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 Electric Machinery Dresser Industries Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-866-4821
Primary Part Number127A905F01
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerElectric Machinery Dresser Industries Inc
StatusCANCELLED
MaterialSILICON SEMICONDUCTOR
Terminal Type and Quantity1 TAB, SOLDER LUG AND 1 THREADED STUD
Mounting Facility Quantity1
MaterialGLASS ENCLOSURE
Current Rating Per Characteristic40.00 AMPERES MAXIMUM FORWARD CURRENT, AVERAGE
Joint Electronic Device Engineering Council/jedec/case Outline DesignationDO-5
Power Rating Per Characteristic68.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Voltage Rating in Volts Per Characteristic600.0 MAXIMUM REVERSE VOLTAGE, PEAK
Features ProvidedHERMETICALLY SEALED CASE AND MOUNTING HARDWARE
Mounting MethodTHREADED STUD(S)
Maximum Operating Temp Per Measurement Point200.0 CELSIUS CASE DEGC
Nominal Thread Size0.250 INCHES IN
Thread Series DesignatorUNF
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5961-00-134-7034 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-146-02421N1189A INTERCHANGEABLE
Semiconductor Device,diode
Infineon Technologies Americas Corp
2805-00-353-592970527C1 INTERCHANGEABLE
Deflector,airflow
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
1005-00-420-5100 INTERCHANGEABLE
Lever,safety
5342-00-593-3651 INTERCHANGEABLE
Latch,lever
5961-00-840-27001N1190A INTERCHANGEABLE
Semiconductor Device,diode
Semitronics Corp
5962-01-277-397949081-3 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
5340-01-428-9084 INTERCHANGEABLE
Bracket,mounting
Cross-Reference Index
Part NumberManufacturer
1N1189A Freescale Semiconductor, Inc. (USA)
1N1190A Infineon Technologies Americas Corp (USA)
1N1190A International Rectifier Corporation (USA)
490813 Dresser, Llc (USA)
56094 Renesas Electronics America Inc (USA)
128A157F01 Electric Machinery Dresser Industries Inc (USA)
6008002 Tdk-Lambda Americas Inc. Div High Power Division (USA)
127A905F01 PRIMARY Electric Machinery Dresser Industries Inc (USA)
1N1189A Westinghouse Electric Corp Semiconductor Div (USA)
Related Parts
5961-00-134-7034INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-146-0242INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1N1189A
2805-00-353-5929INTERCHANGEABLE
DEFLECTOR,AIRFLOW
70527C1
1005-00-420-5100INTERCHANGEABLE
LEVER,SAFETY
5342-00-593-3651INTERCHANGEABLE
LATCH,LEVER
5961-00-840-2700INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1N1190A
5962-01-277-3979INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
49081-3
5340-01-428-9084INTERCHANGEABLE
BRACKET,MOUNTING

Frequently Asked Questions

What is NSN 5961-00-866-4821?

NSN 5961-00-866-4821 is a Semiconductor Device,diode, manufactured by Electric Machinery Dresser Industries Inc, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-866-4821?

NSN 5961-00-866-4821 has 9 cross-referenced part numbers: 1N1189A (Freescale Semiconductor, Inc.), 1N1190A (Infineon Technologies Americas Corp), 1N1190A (International Rectifier Corporation), 490813 (Dresser, Llc), 56094 (Renesas Electronics America Inc) and 4 more.

What NSN replaces 5961-00-866-4821?

There are 8 known substitutes for 5961-00-866-4821: 5961-00-134-7034, 5961-00-146-0242, 2805-00-353-5929 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 127A905F01?

Key specifications for 127A905F01: Material: SILICON SEMICONDUCTOR; Terminal Type and Quantity: 1 TAB, SOLDER LUG AND 1 THREADED STUD; Overall Length: 0.667 INCHES MAXIMUM IN; Mounting Facility Quantity: 1. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-866-4821 still in active supply?

NSN 5961-00-866-4821 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.
PartsTable Design LLC · partstable.com