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Thyristor Semiconductor Device

NSN: 5961-00-107-2677 | Model: RELEASE5221
ITAR Registered seal

A bi stable semiconductor device comprising three or more junctions which is normally a nonconductor until the application of a signal to a gate terminal, at which time the device switches to the conductive state. Includes devices capable of being switched back to the nonconductive state upon application of a different signal to the same or another gate terminal. May or may not include mounting hardware and/or heatsink. For solid state devices which are responsive to visible or infrared radiant energy, see semiconductor device, photo.

NSN Properties and Flags
NATO Stock Number
Yes - ITAR Controlled
Inclosure Material
Overall Length
0.310 inches
Mounting Facility Quantity
Mounting Method
Threaded stud
Overall Width Across Flats
0.437 inches
Thread Size
0.190 inches
Semiconductor Material
Voltage Rating In Volts Per Characteristic
25.0 break over voltage, dc
Current Rating Per Characteristic
5.00 amperes source cutoff current
Power Rating Per Characteristic
500.0 milliwatts small-signal input power, common-collector blank
Maximum Operating Tempurature Per Measurement Point
100.0 degrees celsius junction
Special Features
Internal junction configuration arrangement pnpn
Thread Series Designator
Terminal Type And Quantity
1 threaded stud and 2 tab, solder lug
Specification Data
80131-RELEASE5221 professional/industrial association specification

Pricing and Availability

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NSN 5961-00-107-2677 Datasheet

Supply Class (FSC):
Semiconductor Devices And Associated Hardware
Cross Reference:
  • RELEASE5221
  • 2N4167
  • 2N4167
  • MCR2305-1
  • 353-6485-010
  • 2N4167
  • 2N4167A
Cage Codes:
  • Electronic Industries Association (CAGE 80131)
  • Freescale Semiconductor, Inc. (CAGE 04713)
  • Rockwell Collins, Inc. (CAGE 95105)
  • Adelco Elektronik Gmbh (CAGE C7191)
Schedule B & Trade:
  • Schedule B: 8541300080 (NAICS 334413)

    Thyristors, dicks & triacs, other than photosensitive devices, Nisei

  • SITC: 77635

    Thyristors, dicks and tracks (excluding photosensitive devices)

  • End Use: 21320



N - Indicates there is no data in the humors and the nsn is in a fsc not generally suspected of containing hazardous materials.


A - Item does not contain precious metal.


A - No known electrostatic discharge (esd) or electromagnetic interference (emi) sensitivity.


- Represents items with no adp components


- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    063025 - Semiconductors/devices noi etc

  • WCC:

    72D - Communications/electronics, other than sigint/ew or comsec repair parts and components

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    H - Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps)

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
  • AAC
  • Quantity per pack
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • Repariability
    This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item.

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $8.46 to $14.11..
Does NSN 5961-00-107-2677 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Brazil, Spain, Republic Of Korea, Netherlands, Italy, Norway, Greece, and Turkey
What is the NIIN of NSN 5961-00-107-2677?
001072677 or 00-107-2677
Does NSN 5961-00-107-2677 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5961-00-107-2677?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jul 24, 1968