PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1376-66-108Semiconductor Device,diode

Leonardo S.p.a. - Electronics Division - Defence Business Area · NSN 5961-00-988-1265 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-988-1265 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-988-1265. Primary manufacturer part number: 1376-66-108.
Features
  • Semiconductor Device,diode — FSC 5961
  • Mounting Facility Quantity: 1
  • Terminal Type and Quantity: 1 THREADED STUD AND 1 TAB, SOLDER LUG
  • Material: SILICON SEMICONDUCTOR
  • Thread Series Designator: UNF
  • Specification/standard Data: 80131-RELEASE3944 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: DO-4
  • Nominal Thread Size: 0.190 INCHES 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 5961-00-988-1265, 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 Leonardo S.p.a. - Electronics Division - Defence Business Area. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 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
NSN5961-00-988-1265
Primary Part Number1376-66-108
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerLeonardo S.p.a. - Electronics Division - Defence Business Area
StatusACTIVE
Mounting Facility Quantity1
Terminal Type and Quantity1 THREADED STUD AND 1 TAB, SOLDER LUG
MaterialSILICON SEMICONDUCTOR
Thread Series DesignatorUNF
Specification/standard Data80131-RELEASE3944 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Joint Electronic Device Engineering Council/jedec/case Outline DesignationDO-4
Nominal Thread Size0.190 INCHES IN
Current Rating Per Characteristic1.00 AMPERES MAXIMUM FORWARD CURRENT, DC
Overall Diameter0.424 INCHES MAXIMUM IN
Maximum Operating Temp Per Measurement Point150.0 CELSIUS CASE DEGC
Overall Width Across Flats0.424 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
Features ProvidedHERMETICALLY SEALED CASE
Voltage Rating in Volts Per Characteristic100.0 MAXIMUM REVERSE VOLTAGE, PEAK
Mounting MethodTHREADED STUD(S)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5961-00-192-00761N3890 INTERCHANGEABLE
Semiconductor Device,diode
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5961-00-350-8303 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-935-4912 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-122-2360353-6476-020 INTERCHANGEABLE
Semiconductor Device,diode
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
Cross-Reference Index
Part NumberManufacturer
1376-66-108 Leonardo S.p.a. - Electronics Division - Defence Business Area (ITA)
28821-091 Bae Systems Maritime Services (GBR)
1N3890 Bowmar/tic Inc Sub of Bowmar Instrument Corp (USA)
1N3890 General Electric Co Semi-Conductor Products Dept (USA)
1N3890 Texas Instruments Incorporated (USA)
1N3890 Electronic Industries Association
Related Parts
5961-00-192-0076INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1N3890
5961-00-350-8303INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-935-4912INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-122-2360INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
353-6476-020

Frequently Asked Questions

What is NSN 5961-00-988-1265?

NSN 5961-00-988-1265 is a Semiconductor Device,diode, manufactured by Leonardo S.p.a. - Electronics Division - Defence Business Area, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-988-1265?

NSN 5961-00-988-1265 has 6 cross-referenced part numbers: 1376-66-108 (Leonardo S.p.a. - Electronics Division - Defence Business Area), 28821-091 (Bae Systems Maritime Services), 1N3890 (Bowmar/tic Inc Sub of Bowmar Instrument Corp), 1N3890 (General Electric Co Semi-Conductor Products Dept), 1N3890 (Texas Instruments Incorporated) and 1 more.

What NSN replaces 5961-00-988-1265?

There are 4 known substitutes for 5961-00-988-1265: 5961-00-192-0076, 5961-00-350-8303, 5961-00-935-4912 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1376-66-108?

Key specifications for 1376-66-108: Mounting Facility Quantity: 1; Terminal Type and Quantity: 1 THREADED STUD AND 1 TAB, SOLDER LUG; Material: SILICON SEMICONDUCTOR; Thread Series Designator: UNF. 15 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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