PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N3668Semiconductor Device,thyristor

Concurrent Computer Corporation · NSN 5961-01-180-6551 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-180-6551 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-180-6551. Primary manufacturer part number: 2N3668.
Features
  • Semiconductor Device,thyristor — FSC 5961
  • Maximum Operating Temp Per Measurement Point: 100.0 CELSIUS CASE DEGC
  • Mounting Method: UNTHREADED HOLE(S)
  • Semiconductor Material: SILICON
  • Features Provided: HERMETICALLY SEALED CASE
  • Voltage Rating in Volts Per Characteristic: 100.0 MAXIMUM REPETITIVE PEAK OFF-STATE VOLTAGE
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-3
  • Internal Configuration: JUNCTION CONTACT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-01-180-6551, 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 Concurrent Computer Corporation. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-01-180-6551
Primary Part Number2N3668
Item NameSemiconductor Device,thyristor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerConcurrent Computer Corporation
StatusCANCELLED
Maximum Operating Temp Per Measurement Point100.0 CELSIUS CASE DEGC
Mounting MethodUNTHREADED HOLE(S)
Semiconductor MaterialSILICON
Features ProvidedHERMETICALLY SEALED CASE
Voltage Rating in Volts Per Characteristic100.0 MAXIMUM REPETITIVE PEAK OFF-STATE VOLTAGE
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-3
Internal ConfigurationJUNCTION CONTACT
Mounting Facility Quantity2
Terminal Type and Quantity2 PIN AND 1 CASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5961-00-057-8141 INTERCHANGEABLE
Semiconductor Device,thyristor
5961-01-100-7686 INTERCHANGEABLE
Semiconductor Device,thyristor
5961-01-165-701982-00001-001 INTERCHANGEABLE
Semiconductor Device,thyristor
General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations
Cross-Reference Index
Part NumberManufacturer
2N3668 Concurrent Computer Corporation (USA)
57120-0047 Concurrent Computer Corporation (USA)
Related Parts
5961-00-057-8141INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-01-100-7686INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5961-01-165-7019INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
82-00001-001

Frequently Asked Questions

What is NSN 5961-01-180-6551?

NSN 5961-01-180-6551 is a Semiconductor Device,thyristor, manufactured by Concurrent Computer Corporation, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-01-180-6551?

NSN 5961-01-180-6551 has 2 cross-referenced part numbers: 2N3668 (Concurrent Computer Corporation), 57120-0047 (Concurrent Computer Corporation).

What NSN replaces 5961-01-180-6551?

There are 3 known substitutes for 5961-01-180-6551: 5961-00-057-8141, 5961-01-100-7686, 5961-01-165-7019. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N3668?

Key specifications for 2N3668: Overall Width: 1.050 INCHES MAXIMUM IN; Maximum Operating Temp Per Measurement Point: 100.0 CELSIUS CASE DEGC; Mounting Method: UNTHREADED HOLE(S); Semiconductor Material: SILICON. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-01-180-6551 still in active supply?

NSN 5961-01-180-6551 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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