PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1N661Semiconductor Device,diode

General Semiconductor Inc · NSN 5961-00-682-8891 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-682-8891 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-682-8891. Primary manufacturer part number: 1N661.
Features
  • Semiconductor Device,diode — FSC 5961
  • Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD
  • Material: SILICON SEMICONDUCTOR
  • Nondefinitive Spec/std Data: 1N661 TYPE
  • Features Provided: HERMETICALLY SEALED CASE
  • 11 verified cross-references
  • Primary manufacturer: General Semiconductor Inc
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 5961-00-682-8891, 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 General Semiconductor Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-682-8891
Primary Part Number1N661
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerGeneral Semiconductor Inc
StatusCANCELLED
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
MaterialSILICON SEMICONDUCTOR
Nondefinitive Spec/std Data1N661 TYPE
Features ProvidedHERMETICALLY SEALED CASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5961-00-617-6095 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-945-9631 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
1N661 Alpine Industries Inc (USA)
1N661 Electronic Industries Association
1N661 Texas Instruments Incorporated (USA)
1N661 PRIMARY General Semiconductor Inc (USA)
RELEASE2099 Electronic Industries Association
1N661 C O D I Corp Dba Codi Semiconductor Inc (USA)
410-327-3 Raytheon Company Dba Raytheon (USA)
1N661 PRIMARY Raytheon Company Dba Raytheon (USA)
1N661 Gilbert Engineering Co Inc/incon Sub of Transitron Electronic Corp (USA)
1N661 Fairchild Semiconductor Corp (USA)
9175250 Us Army Aviation and Missile Command (USA)
Related Parts
5961-00-617-6095INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-945-9631INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 5961-00-682-8891?

NSN 5961-00-682-8891 is a Semiconductor Device,diode, manufactured by General Semiconductor Inc, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-682-8891?

NSN 5961-00-682-8891 has 11 cross-referenced part numbers: 1N661 (Alpine Industries Inc), 1N661 (Electronic Industries Association), 1N661 (Texas Instruments Incorporated), 1N661 (General Semiconductor Inc), RELEASE2099 (Electronic Industries Association) and 6 more.

What NSN replaces 5961-00-682-8891?

There are 2 known substitutes for 5961-00-682-8891: 5961-00-617-6095, 5961-00-945-9631. Verify interchangeability with system specifications before substitution.

What are the specifications of 1N661?

Key specifications for 1N661: Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD; Material: SILICON SEMICONDUCTOR; Nondefinitive Spec/std Data: 1N661 TYPE; Features Provided: HERMETICALLY SEALED CASE. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-682-8891 still in active supply?

NSN 5961-00-682-8891 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.
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