PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121-787Transistor

Zenith Electronics Corporation · NSN 5961-01-130-5193 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-130-5193 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-130-5193. Primary manufacturer part number: 121-787.
Features
  • Transistor — FSC 5961
  • Power Rating Per Characteristic: 0.15 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
  • Voltage Rating in Volts Per Characteristic: 20.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND 55.0 MAXIMUM DRAIN TO GATE VOLTAGE
  • Mounting Method: TERMINAL
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Terminal Circle Diameter: 0.100 INCHES NOMINAL IN
  • Semiconductor Material: SILICON
  • Terminal Type and Quantity: 4 UNINSULATED WIRE LEAD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-130-5193, 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 Zenith Electronics Corporation. Government technical data includes 11 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-130-5193
Primary Part Number121-787
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerZenith Electronics Corporation
StatusACTIVE
Power Rating Per Characteristic0.15 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
Voltage Rating in Volts Per Characteristic20.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND 55.0 MAXIMUM DRAIN TO GATE VOLTAGE
Mounting MethodTERMINAL
Terminal Length0.500 INCHES MINIMUM IN
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Semiconductor MaterialSILICON
Terminal Type and Quantity4 UNINSULATED WIRE LEAD
Overall Diameter0.230 INCHES MAXIMUM IN
Features ProvidedHERMETICALLY SEALED CASE
Internal ConfigurationFIELD EFFECT-DUAL GATE
Current Rating Per Characteristic30.00 MILLIAMPERES MAXIMUM ZERO-GATE-VOLTAGE DRAIN CURRENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-144-8605 INTERCHANGEABLE
Bearing,ball,annular
5305-00-558-3694 INTERCHANGEABLE
Screw,cap,hexagon Head
3610-00-779-1940121787 INTERCHANGEABLE
Plate,hook Presser
Smyth Mfg Co Sub of the Beacon Group
Cross-Reference Index
Part NumberManufacturer
121-787 PRIMARY Zenith Electronics Corporation (USA)
Related Parts
3110-00-144-8605INTERCHANGEABLE
BEARING,BALL,ANNULAR
5305-00-558-3694INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
3610-00-779-1940INTERCHANGEABLE
PLATE,HOOK PRESSER
121787

Frequently Asked Questions

What is NSN 5961-01-130-5193?

NSN 5961-01-130-5193 is a Transistor, manufactured by Zenith Electronics Corporation, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-130-5193?

NSN 5961-01-130-5193 has 1 cross-referenced part number: 121-787 (Zenith Electronics Corporation).

What NSN replaces 5961-01-130-5193?

There are 3 known substitutes for 5961-01-130-5193: 3110-00-144-8605, 5305-00-558-3694, 3610-00-779-1940. Verify interchangeability with system specifications before substitution.

What are the specifications of 121-787?

Key specifications for 121-787: Power Rating Per Characteristic: 0.15 WATTS MAXIMUM TOTAL DEVICE DISSIPATION; Voltage Rating in Volts Per Characteristic: 20.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND 55.0 MAXIMUM DRAIN TO GATE VOLTAGE; Mounting Method: TERMINAL; Terminal Length: 0.500 INCHES MINIMUM IN. 12 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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