PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PN4393-18Transistor

Siliconix Incorporated Div Siliconix · NSN 5961-01-039-6426 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-039-6426 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-039-6426. Primary manufacturer part number: PN4393-18.
Features
  • Transistor — FSC 5961
  • Material: PLASTIC ENCLOSURE
  • Electrode Internally-Electrically Connected to Case: GATE
  • Mounting Method: TERMINAL
  • Internal Configuration: FIELD EFFECT
  • Current Rating Per Characteristic: 50.00 MILLIAMPERES MAXIMUM GATE CURRENT
  • Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS AMBIENT AIR DEGC
  • Terminal Length: 0.500 INCHES MINIMUM IN
Applications
  • Applications requiring Plastic Enclosure construction
General Description

The Transistor, cataloged under National Stock Number 5961-01-039-6426, 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 12 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-01-039-6426
Primary Part NumberPN4393-18
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSiliconix Incorporated Div Siliconix
StatusCANCELLED
MaterialPLASTIC ENCLOSURE
Electrode Internally-Electrically Connected to CaseGATE
Mounting MethodTERMINAL
Internal ConfigurationFIELD EFFECT
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM GATE CURRENT
Maximum Operating Temp Per Measurement Point175.0 CELSIUS AMBIENT AIR DEGC
Terminal Length0.500 INCHES MINIMUM IN
Power Rating Per Characteristic360.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
Voltage Rating in Volts Per Characteristic20.0 NOMINAL PEAK-POINT VOLTAGE
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Semiconductor MaterialSILICON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5961-00-231-99622N4393 INTERCHANGEABLE
Transistor
Siliconix Incorporated Div Siliconix
5961-01-122-4099KE4393 INTERCHANGEABLE
Transistor
Solitron Devices, Inc.
Cross-Reference Index
Part NumberManufacturer
KE4393 National Semiconductor Corporation (USA)
PN4393-18 PRIMARY Siliconix Incorporated Div Siliconix (USA)
PN4393-18 National Semiconductor Corporation (USA)
Related Parts
5961-00-231-9962INTERCHANGEABLE
TRANSISTOR
2N4393
5961-01-122-4099INTERCHANGEABLE
TRANSISTOR
KE4393

Frequently Asked Questions

What is NSN 5961-01-039-6426?

NSN 5961-01-039-6426 is a Transistor, manufactured by Siliconix Incorporated Div Siliconix, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-01-039-6426?

NSN 5961-01-039-6426 has 3 cross-referenced part numbers: KE4393 (National Semiconductor Corporation), PN4393-18 (Siliconix Incorporated Div Siliconix), PN4393-18 (National Semiconductor Corporation).

What NSN replaces 5961-01-039-6426?

There are 2 known substitutes for 5961-01-039-6426: 5961-00-231-9962, 5961-01-122-4099. Verify interchangeability with system specifications before substitution.

What are the specifications of PN4393-18?

Key specifications for PN4393-18: Overall Length: 0.240 INCHES MAXIMUM IN; Overall Height: 0.240 INCHES MAXIMUM IN; Material: PLASTIC ENCLOSURE; Electrode Internally-Electrically Connected to Case: GATE. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-01-039-6426 still in active supply?

NSN 5961-01-039-6426 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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