PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N3685Transistor

Siliconix Incorporated Div Siliconix · NSN 5961-00-252-1325 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-252-1325 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-252-1325. Primary manufacturer part number: 2N3685.
Features
  • Transistor — FSC 5961
  • Specification/standard Data: 80131-RELEASE5012 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
  • Voltage Rating in Volts Per Characteristic: 50.0 MAXIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE
  • Internal Configuration: FIELD EFFECT
  • Terminal Type and Quantity: 4 PIN
  • Mounting Method: TERMINAL
  • Overall Diameter: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
  • Current Rating Per Characteristic: 3.00 MILLIAMPERES MAXIMUM DRAIN CURRENT AND 50.00 MILLIAMPERES MAXIMUM GATE CURRENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-252-1325, 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 11 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-252-1325
Primary Part Number2N3685
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSiliconix Incorporated Div Siliconix
StatusACTIVE
Specification/standard Data80131-RELEASE5012 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Voltage Rating in Volts Per Characteristic50.0 MAXIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE
Internal ConfigurationFIELD EFFECT
Terminal Type and Quantity4 PIN
Mounting MethodTERMINAL
Overall Diameter0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
Current Rating Per Characteristic3.00 MILLIAMPERES MAXIMUM DRAIN CURRENT AND 50.00 MILLIAMPERES MAXIMUM GATE CURRENT
Power Rating Per Characteristic150.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
Terminal Length0.500 INCHES MINIMUM IN
Semiconductor MaterialSILICON
Features ProvidedHERMETICALLY SEALED CASE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-105-7496 INTERCHANGEABLE
Transistor
5961-00-359-5615328245 INTERCHANGEABLE
Transistor
Fluke Corp
9540-00-596-2770 INTERCHANGEABLE
Angle,structural
4730-00-720-50025228623-1 INTERCHANGEABLE
Reducer,pipe
U S Army Tank Automotive Command Amsta-Im-Mm
5961-00-898-0659 INTERCHANGEABLE
Transistor
4810-01-073-30660HMS1-30943 INTERCHANGEABLE
Valve,linear,directional Control
Woodward Hrt Div Woodward Hrt/cadillac Gage
2530-01-215-193178299 INTERCHANGEABLE
Brake,multiple Disk
Ausco Products Inc
3020-01-216-205830943 INTERCHANGEABLE
Gear,antibacklash,spur
Adams Rite Aerospace, Inc
5331-01-268-6812207133 INTERCHANGEABLE
O-Ring
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
5905-01-317-9913A30943 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Ozalid Corp
Cross-Reference Index
Part NumberManufacturer
2N3685 Siliconix Incorporated Div Siliconix (USA)
2N3685 National Semiconductor Corporation (USA)
RELEASE5012 Electronic Industries Association
30943-1 The Dewey Electronics Corporation (USA)
2N3685 Union Carbide Corp Materials Systems Div (USA)
30943 The Dewey Electronics Corporation (USA)
2N3685 Electronic Industries Association
2N3685 Fairchild Semiconductor Corp (USA)
2N3685 National Semiconductor Corp (USA)
2N3685 Solitron Devices, Inc. (USA)
2N3685 Telcom Semiconductor Inc (USA)
Related Parts
5961-00-105-7496INTERCHANGEABLE
TRANSISTOR
5961-00-359-5615INTERCHANGEABLE
TRANSISTOR
328245
9540-00-596-2770INTERCHANGEABLE
ANGLE,STRUCTURAL
4730-00-720-5002INTERCHANGEABLE
REDUCER,PIPE
5228623-1
5961-00-898-0659INTERCHANGEABLE
TRANSISTOR
4810-01-073-3066INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
0HMS1-30943
2530-01-215-1931INTERCHANGEABLE
BRAKE,MULTIPLE DISK
78299
3020-01-216-2058INTERCHANGEABLE
GEAR,ANTIBACKLASH,SPUR
30943
5331-01-268-6812INTERCHANGEABLE
O-RING
207133
5905-01-317-9913INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
A30943
5305-01-591-6579INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
30943
1630-01-653-4915INTERCHANGEABLE
PLATE,BACKING,BRAKE
309-43

Frequently Asked Questions

What is NSN 5961-00-252-1325?

NSN 5961-00-252-1325 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 5961-00-252-1325?

NSN 5961-00-252-1325 has 11 cross-referenced part numbers: 2N3685 (Siliconix Incorporated Div Siliconix), 2N3685 (National Semiconductor Corporation), RELEASE5012 (Electronic Industries Association), 30943-1 (The Dewey Electronics Corporation), 2N3685 (Union Carbide Corp Materials Systems Div) and 6 more.

What NSN replaces 5961-00-252-1325?

There are 12 known substitutes for 5961-00-252-1325: 5961-00-105-7496, 5961-00-359-5615, 9540-00-596-2770 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N3685?

Key specifications for 2N3685: Specification/standard Data: 80131-RELEASE5012 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION; Voltage Rating in Volts Per Characteristic: 50.0 MAXIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE; Internal Configuration: FIELD EFFECT; Terminal Type and Quantity: 4 PIN. 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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