PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1N821ASemiconductor Device,diode

Infineon Technologies Americas Corp · NSN 5961-00-951-6375 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-951-6375 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-951-6375. Primary manufacturer part number: 1N821A.
Features
  • Semiconductor Device,diode — FSC 5961
  • Mounting Method: TERMINAL
  • Power Rating Per Characteristic: 400.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
  • Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD
  • Specification/standard Data: 80131-RELEASE3109 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
  • Features Provided: HERMETICALLY SEALED CASE
  • Voltage Rating in Volts Per Characteristic: 6.2 MAXIMUM NOMINAL REGULATOR VOLTAGE
  • Terminal Length: 1.000 INCHES MINIMUM IN
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 5961-00-951-6375, 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 Infineon Technologies Americas Corp. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 24 commercial cross-references from 22 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-951-6375
Primary Part Number1N821A
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerInfineon Technologies Americas Corp
StatusACTIVE
Mounting MethodTERMINAL
Power Rating Per Characteristic400.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
Specification/standard Data80131-RELEASE3109 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Features ProvidedHERMETICALLY SEALED CASE
Voltage Rating in Volts Per Characteristic6.2 MAXIMUM NOMINAL REGULATOR VOLTAGE
Terminal Length1.000 INCHES MINIMUM IN
Current Rating Per Characteristic7.50 MILLIAMPERES MAXIMUM MAXIMUM REVERSE SURGE CURRENT
Overall Diameter0.107 INCHES MAXIMUM IN
MaterialSILICON SEMICONDUCTOR
MaterialGLASS ENCLOSURE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5961-00-062-0208 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-719-43572576899 INTERCHANGEABLE
Semiconductor Device,diode
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5961-00-903-9793 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-988-0879 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
1N821A Infineon Technologies Americas Corp (USA)
1N821A General Semiconductor Industries Inc (USA)
1N821A International Diode Corp (USA)
1N821A Joint Electron Device Engineering Council
1N821A N a P Smd Technology Inc
1N821A Microsemi Corp.-Scottsdale Dba Microsemi (USA)
RELEASE3109 Electronic Industries Association
1N821A C O D I Corp Dba Codi Semiconductor Inc (USA)
1N821A Gilbert Engineering Co Inc/incon Sub of Transitron Electronic Corp (USA)
1N821A Silicon Transistor Corporation Dba Same (USA)
1N821A Texas Instruments Incorporated (USA)
1N821A Microsemi Corporation (USA)
1N821AA Adelco Elektronik Gmbh (DEU)
1N821A Trw Electronics and Defense Sector Rf Devices (USA)
353-3261-00 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
1N821A Electronic Industries Association
906381 Raytheon Technical Services Company (USA)
1N821A Semiconductor Devices Inc (USA)
1N821A Slater Electric Inc (USA)
353-3261-000 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
Related Parts
5961-00-062-0208INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-719-4357INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
2576899
5961-00-903-9793INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-988-0879INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 5961-00-951-6375?

NSN 5961-00-951-6375 is a Semiconductor Device,diode, manufactured by Infineon Technologies Americas Corp, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-951-6375?

NSN 5961-00-951-6375 has 24 cross-referenced part numbers: 1N821A (Infineon Technologies Americas Corp), 1N821A (General Semiconductor Industries Inc), 1N821A (International Diode Corp), 1N821A (Joint Electron Device Engineering Council), 1N821A (N a P Smd Technology Inc) and 19 more.

What NSN replaces 5961-00-951-6375?

There are 4 known substitutes for 5961-00-951-6375: 5961-00-062-0208, 5961-00-719-4357, 5961-00-903-9793 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1N821A?

Key specifications for 1N821A: Overall Length: 0.300 INCHES MAXIMUM IN; Mounting Method: TERMINAL; Power Rating Per Characteristic: 400.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION; Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com