PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N3378Transistor

Siliconix Incorporated Div Siliconix · NSN 5961-00-824-5221 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-824-5221 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-824-5221. Primary manufacturer part number: 2N3378.
Features
  • Transistor — FSC 5961
  • Current Rating Per Characteristic: 100.00 MILLIAMPERES MAXIMUM DRAIN CURRENT AND 50.00 MILLIAMPERES MAXIMUM GATE CURRENT
  • Terminal Type and Quantity: 4 UNINSULATED WIRE LEAD
  • Semiconductor Material: SILICON
  • Features Provided: HERMETICALLY SEALED CASE
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Power Rating Per Characteristic: 300.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
  • Mounting Method: TERMINAL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-824-5221, 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 Siliconix Incorporated Div Siliconix. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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
NSN5961-00-824-5221
Primary Part Number2N3378
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSiliconix Incorporated Div Siliconix
StatusACTIVE
Current Rating Per Characteristic100.00 MILLIAMPERES MAXIMUM DRAIN CURRENT AND 50.00 MILLIAMPERES MAXIMUM GATE CURRENT
Terminal Type and Quantity4 UNINSULATED WIRE LEAD
Semiconductor MaterialSILICON
Features ProvidedHERMETICALLY SEALED CASE
Terminal Length0.500 INCHES MINIMUM IN
Power Rating Per Characteristic300.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
Mounting MethodTERMINAL
Voltage Rating in Volts Per Characteristic30.0 MAXIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE
Overall Diameter0.230 INCHES MAXIMUM IN
Specification/standard Data80131-RELEASE4739 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Internal ConfigurationFIELD EFFECT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5961-00-076-6670 INTERCHANGEABLE
Transistor
5961-00-116-2695 INTERCHANGEABLE
Transistor
5961-00-498-84642N3386 INTERCHANGEABLE
Transistor
Solitron Devices, Inc.
5961-00-897-1691 INTERCHANGEABLE
Transistor
4730-01-066-46212N3378 INTERCHANGEABLE
Elbow,pipe to Tube
Caterpillar Inc Div Caterpillar Defense
Cross-Reference Index
Part NumberManufacturer
2N3378 Siliconix Incorporated Div Siliconix (USA)
2N3378 Electronic Industries Association
RELEASE 4739 Electronic Industries Association
Related Parts
5961-00-076-6670INTERCHANGEABLE
TRANSISTOR
5961-00-116-2695INTERCHANGEABLE
TRANSISTOR
5961-00-498-8464INTERCHANGEABLE
TRANSISTOR
2N3386
5961-00-897-1691INTERCHANGEABLE
TRANSISTOR
4730-01-066-4621INTERCHANGEABLE
ELBOW,PIPE TO TUBE
2N3378

Frequently Asked Questions

What is NSN 5961-00-824-5221?

NSN 5961-00-824-5221 is a Transistor, manufactured by Siliconix Incorporated Div Siliconix, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-824-5221?

NSN 5961-00-824-5221 has 3 cross-referenced part numbers: 2N3378 (Siliconix Incorporated Div Siliconix), 2N3378 (Electronic Industries Association), RELEASE 4739 (Electronic Industries Association).

What NSN replaces 5961-00-824-5221?

There are 5 known substitutes for 5961-00-824-5221: 5961-00-076-6670, 5961-00-116-2695, 5961-00-498-8464 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N3378?

Key specifications for 2N3378: Current Rating Per Characteristic: 100.00 MILLIAMPERES MAXIMUM DRAIN CURRENT AND 50.00 MILLIAMPERES MAXIMUM GATE CURRENT; Terminal Type and Quantity: 4 UNINSULATED WIRE LEAD; Semiconductor Material: SILICON; Features Provided: HERMETICALLY SEALED CASE. 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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