PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ST-1084Transistor

Semiconductor Technology, Inc. Dba Semiconductor Technology Inc · NSN 5961-01-090-3257 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-090-3257 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-090-3257. Primary manufacturer part number: ST-1084.
Features
  • Transistor — FSC 5961
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC
  • Current Rating Per Characteristic: 1.00 AMPERES MAXIMUM BASE CURRENT, DC AND 3.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Mounting Facility Quantity: 2
  • Power Rating Per Characteristic: 35.0 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
  • Terminal Type and Quantity: 1 CASE AND 2 PIN
  • Mounting Method: UNTHREADED HOLE(S)
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-090-3257, 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 Semiconductor Technology, Inc. Dba Semiconductor Technology Inc. Government technical data includes 13 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-090-3257
Primary Part NumberST-1084
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSemiconductor Technology, Inc. Dba Semiconductor Technology Inc
StatusACTIVE
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Current Rating Per Characteristic1.00 AMPERES MAXIMUM BASE CURRENT, DC AND 3.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Mounting Facility Quantity2
Power Rating Per Characteristic35.0 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Terminal Type and Quantity1 CASE AND 2 PIN
Mounting MethodUNTHREADED HOLE(S)
Test Data Document81755-C8751 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Semiconductor MaterialSILICON
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-66
Features ProvidedHERMETICALLY SEALED CASE
Internal ConfigurationJUNCTION CONTACT
Voltage Rating in Volts Per Characteristic90.0 MAXIMUM COLLECTOR TO BASE VOLTAGE, DC AND 80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, DC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
1005-00-200-58006009832 INTERCHANGEABLE
Spring,helical
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
5340-00-757-1235A101-16 INTERCHANGEABLE
Clamp
Renbrandt, Inc.
4720-00-915-4603REDAR-A10116-02 INTERCHANGEABLE
Hose Assembly,air Breathing
R.e. Darling Co., Inc.
5310-00-964-7092NAS1330A3-116 INTERCHANGEABLE
Nut,plain,blind Rivet
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5120-01-581-5810 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
C8751-1 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
ST-1084 PRIMARY Semiconductor Technology, Inc. Dba Semiconductor Technology Inc (USA)
A10116 Api Electronics, Inc. Dba Api Technologies Corp Div Api Technologies - Spectrum Microwave (USA)
STX8751 PRIMARY Solid State Devices, Inc (USA)
KP4002 PRIMARY Microsemi Corp - Massachusetts (USA)
KP4002 Microsemi Ppc Inc (USA)
Related Parts
1005-00-200-5800INTERCHANGEABLE
SPRING,HELICAL
6009832
5340-00-757-1235INTERCHANGEABLE
CLAMP
A101-16
4720-00-915-4603INTERCHANGEABLE
HOSE ASSEMBLY,AIR BREATHING
REDAR-A10116-02
5310-00-964-7092INTERCHANGEABLE
NUT,PLAIN,BLIND RIVET
NAS1330A3-116
5120-01-581-5810INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5961-01-090-3257?

NSN 5961-01-090-3257 is a Transistor, manufactured by Semiconductor Technology, Inc. Dba Semiconductor Technology Inc, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-090-3257?

NSN 5961-01-090-3257 has 6 cross-referenced part numbers: C8751-1 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), ST-1084 (Semiconductor Technology, Inc. Dba Semiconductor Technology Inc), A10116 (Api Electronics, Inc. Dba Api Technologies Corp Div Api Technologies - Spectrum Microwave), STX8751 (Solid State Devices, Inc), KP4002 (Microsemi Corp - Massachusetts) and 1 more.

What NSN replaces 5961-01-090-3257?

There are 5 known substitutes for 5961-01-090-3257: 1005-00-200-5800, 5340-00-757-1235, 4720-00-915-4603 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ST-1084?

Key specifications for ST-1084: Overall Width: 0.700 INCHES MAXIMUM IN; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC; Special Features: JUNCTION PATTERN ARRANGEMENT: NPN; Overall Length: 1.252 INCHES MAXIMUM IN. 17 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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