PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1N4743ASemiconductor Device,diode

Microsemi Corp.-Scottsdale Dba Microsemi · NSN 5961-00-850-0561 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-850-0561 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-850-0561. Primary manufacturer part number: 1N4743A.
Features
  • Semiconductor Device,diode — FSC 5961
  • Specification/standard Data: 80131-RELEASE5009 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
  • Current Rating Per Characteristic: 19.00 MILLIAMPERES MAXIMUM MAXIMUM REVERSE SURGE CURRENT
  • Material: GLASS ENCLOSURE
  • Mounting Method: TERMINAL
  • Overall Diameter: 0.107 INCHES MAXIMUM IN
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS AMBIENT AIR DEGC
  • Power Rating Per Characteristic: 1.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
  • Applications requiring Glass Enclosure construction
General Description

The Semiconductor Device,diode, cataloged under National Stock Number 5961-00-850-0561, 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 Microsemi Corp.-Scottsdale Dba Microsemi. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 18 commercial cross-references from 14 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
NSN5961-00-850-0561
Primary Part Number1N4743A
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerMicrosemi Corp.-Scottsdale Dba Microsemi
StatusCANCELLED
Specification/standard Data80131-RELEASE5009 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Current Rating Per Characteristic19.00 MILLIAMPERES MAXIMUM MAXIMUM REVERSE SURGE CURRENT
MaterialGLASS ENCLOSURE
Mounting MethodTERMINAL
Overall Diameter0.107 INCHES MAXIMUM IN
Maximum Operating Temp Per Measurement Point200.0 CELSIUS AMBIENT AIR DEGC
Power Rating Per Characteristic1.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Features ProvidedHERMETICALLY SEALED CASE
Terminal Length1.100 INCHES MINIMUM IN
Voltage Rating in Volts Per Characteristic13.0 MAXIMUM NOMINAL REGULATOR VOLTAGE
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
MaterialSILICON SEMICONDUCTOR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
6105-00-042-8918 INTERCHANGEABLE
Brake Shoe,motor
5961-00-133-5483 INTERCHANGEABLE
Semiconductor Device,diode
6625-00-710-3174 INTERCHANGEABLE
Voltmeter
5961-01-023-1694L02113 INTERCHANGEABLE
Semiconductor Device,diode
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
5961-01-023-28504070008 INTERCHANGEABLE
Semiconductor Device,diode
Power/mate Co
4720-01-353-29503013939-6-6-6-92.00-000 INTERCHANGEABLE
Hose Assembly,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
5985-01-360-900513984 INTERCHANGEABLE
Mast Section
General Dynamics Mission Systems, Inc.
2910-01-587-3396 INTERCHANGEABLE
Thermostat,choke,automotive
Cross-Reference Index
Part NumberManufacturer
1N4743A Microsemi Corp.-Scottsdale Dba Microsemi (USA)
1N4743A Adelco Elektronik Gmbh (DEU)
1N4743A Lacon Electronic Gmbh (DEU)
1N4743A Infineon Technologies Americas Corp (USA)
1N4743A Electronic Industries Association
1N4743A General Semiconductor Industries Inc (USA)
13984 Fairchild Aviation Recorders Data Systems Div of Sangamo Weston Inc Sub of Schlumberger Technology Corp (USA)
RELEASE5009 Electronic Industries Association
2892251-15 Paramax Systems Corp Communication Systems Div (USA)
4811-4743 Xkd Corp Dba Display Solutions (USA)
SMB692861-3 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
1N4743 Electronic Industries Association
4811-4743 Aydin Displays, Inc. (USA)
IN4743 Freescale Semiconductor, Inc. (USA)
246186-0130 Thales Usa, Inc. Div Air Mobility Solutions ("ams") (USA)
1713-15 Textron Systems Corporation Dba Textron Systems Corp (USA)
1N4743A Freescale Semiconductor, Inc. (USA)
1N4743AA Adelco Elektronik Gmbh (DEU)
Related Parts
6105-00-042-8918INTERCHANGEABLE
BRAKE SHOE,MOTOR
5961-00-133-5483INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
6625-00-710-3174INTERCHANGEABLE
VOLTMETER
5961-01-023-1694INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
L02113
5961-01-023-2850INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
4070008
4720-01-353-2950INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
3013939-6-6-6-92.00-000
5985-01-360-9005INTERCHANGEABLE
MAST SECTION
13984
2910-01-587-3396INTERCHANGEABLE
THERMOSTAT,CHOKE,AUTOMOTIVE

Frequently Asked Questions

What is NSN 5961-00-850-0561?

NSN 5961-00-850-0561 is a Semiconductor Device,diode, manufactured by Microsemi Corp.-Scottsdale Dba Microsemi, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-850-0561?

NSN 5961-00-850-0561 has 18 cross-referenced part numbers: 1N4743A (Microsemi Corp.-Scottsdale Dba Microsemi), 1N4743A (Adelco Elektronik Gmbh), 1N4743A (Lacon Electronic Gmbh), 1N4743A (Infineon Technologies Americas Corp), 1N4743A (Electronic Industries Association) and 13 more.

What NSN replaces 5961-00-850-0561?

There are 8 known substitutes for 5961-00-850-0561: 6105-00-042-8918, 5961-00-133-5483, 6625-00-710-3174 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1N4743A?

Key specifications for 1N4743A: Specification/standard Data: 80131-RELEASE5009 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION; Current Rating Per Characteristic: 19.00 MILLIAMPERES MAXIMUM MAXIMUM REVERSE SURGE CURRENT; Material: GLASS ENCLOSURE; Mounting Method: TERMINAL. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-850-0561 still in active supply?

NSN 5961-00-850-0561 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