PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21009Semiconductor Device Set

Magnetika Inc · NSN 5961-00-494-3351 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-494-3351 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-494-3351. Primary manufacturer part number: 21009.
Features
  • Semiconductor Device Set — FSC 5961
  • Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS JUNCTION ALL TRANSISTOR DEGC
  • Internal Junction Configuration: NPN ALL TRANSISTOR
  • Voltage Rating in Volts Per Characteristic: 140.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN ALL TRANSISTOR
  • Semiconductor Material: SILICON ALL TRANSISTOR
  • Internal Configuration: JUNCTION CONTACT ALL TRANSISTOR
  • Mounting Facility Quantity: 2 ALL TRANSISTOR
  • Electrode Internally-Electrically Connected to Case: COLLECTOR ALL TRANSISTOR
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Semiconductor Device Set, cataloged under National Stock Number 5961-00-494-3351, 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 Magnetika Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-494-3351
Primary Part Number21009
Item NameSemiconductor Device Set
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerMagnetika Inc
StatusACTIVE
Maximum Operating Temp Per Measurement Point175.0 CELSIUS JUNCTION ALL TRANSISTOR DEGC
Internal Junction ConfigurationNPN ALL TRANSISTOR
Voltage Rating in Volts Per Characteristic140.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN ALL TRANSISTOR
Semiconductor MaterialSILICON ALL TRANSISTOR
Internal ConfigurationJUNCTION CONTACT ALL TRANSISTOR
Mounting Facility Quantity2 ALL TRANSISTOR
Electrode Internally-Electrically Connected to CaseCOLLECTOR ALL TRANSISTOR
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-3 ALL TRANSISTOR
Component Function RelationshipMATCHED
Component Name and Quantity2 TRANSISTOR
Features ProvidedHERMETICALLY SEALED CASE
Mounting MethodUNTHREADED HOLE(S) ALL TRANSISTOR
Power Rating Per Characteristic150.0 WATTS MAXIMUM TOTAL DEVICE DISSIPATION ALL TRANSISTOR
Terminal Type and Quantity2 PIN AND 1 CASE ALL TRANSISTOR
Current Rating Per Characteristic16.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC ALL TRANSISTOR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6685-00-424-72416270C INTERCHANGEABLE
Thermometer Testing Set
Miller and Weber Inc
5940-00-984-4538 INTERCHANGEABLE
Terminal Board
5340-01-101-446021009 INTERCHANGEABLE
Cover,access
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
3040-01-307-6157 INTERCHANGEABLE
Thrust Plate,clutch
5110-01-396-31415B INTERCHANGEABLE
Cutter,circle
General Tools Manufacturing Co., Llc.
5340-01-396-724822CC37D0125 INTERCHANGEABLE
Clamp,loop
Micro Plastics Inc
5120-01-430-7922 INTERCHANGEABLE
Wrench,open End
5962-01-438-021921-009 INTERCHANGEABLE
Microcircuit,linear
Palomar Products, Inc.
3120-01-483-7753 INTERCHANGEABLE
Bearing,washer,thrust
5315-01-561-102021-009 INTERCHANGEABLE
Pin,shoulder,headless
Hii Unmanned Systems, Inc
Cross-Reference Index
Part NumberManufacturer
21009 PRIMARY Magnetika Inc (USA)
Related Parts
6685-00-424-7241INTERCHANGEABLE
THERMOMETER TESTING SET
6270C
5940-00-984-4538INTERCHANGEABLE
TERMINAL BOARD
5340-01-101-4460INTERCHANGEABLE
COVER,ACCESS
21009
3040-01-307-6157INTERCHANGEABLE
THRUST PLATE,CLUTCH
5110-01-396-3141INTERCHANGEABLE
CUTTER,CIRCLE
5B
5340-01-396-7248INTERCHANGEABLE
CLAMP,LOOP
22CC37D0125
5120-01-430-7922INTERCHANGEABLE
WRENCH,OPEN END
5962-01-438-0219INTERCHANGEABLE
MICROCIRCUIT,LINEAR
21-009
3120-01-483-7753INTERCHANGEABLE
BEARING,WASHER,THRUST
5315-01-561-1020INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
21-009
5340-01-566-9410INTERCHANGEABLE
PLATE,RETAINING,SEAL
21009

Frequently Asked Questions

What is NSN 5961-00-494-3351?

NSN 5961-00-494-3351 is a Semiconductor Device Set, manufactured by Magnetika Inc, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-494-3351?

NSN 5961-00-494-3351 has 1 cross-referenced part number: 21009 (Magnetika Inc).

What NSN replaces 5961-00-494-3351?

There are 11 known substitutes for 5961-00-494-3351: 6685-00-424-7241, 5940-00-984-4538, 5340-01-101-4460 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21009?

Key specifications for 21009: Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS JUNCTION ALL TRANSISTOR DEGC; Overall Length: 1.573 INCHES MAXIMUM ALL TRANSISTOR IN; Overall Height: 0.350 INCHES NOMINAL ALL TRANSISTOR IN; Internal Junction Configuration: NPN ALL TRANSISTOR. 18 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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