Datasheets
2N4393 by:

Small Signal Field-Effect Transistor, 1-Element, N-Channel, Silicon, Junction FET, TO-18

Part Details for 2N4393 by InterFET Corporation

Results Overview of 2N4393 by InterFET Corporation

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

2N4393 Information

2N4393 by InterFET Corporation is a Small Signal Field-Effect Transistor.
Small Signal Field-Effect Transistors are under the broader part category of Transistors.

A transistor is a small semiconductor device used to amplify, control, or create electrical signals. When selecting a transistor, factors such as voltage, current rating, gain, and power dissipation must be considered, with common types. Read more about Transistors on our Transistors part category page.

Price & Stock for 2N4393

Part # Distributor Description Stock Price Buy
DISTI # 106-2N4393
Mouser Electronics JFETs JFET N-Channel -40V Low Noise RoHS: Compliant 121
  • 1 $11.8900
  • 10 $10.4800
  • 25 $10.1900
  • 50 $9.6300
  • 100 $9.0600
  • 250 $8.7800
  • 500 $8.2100
  • 1,000 $7.5300
$7.5300 / $11.8900 Buy Now

Part Details for 2N4393

2N4393 CAD Models

2N4393 Part Data Attributes

2N4393 InterFET Corporation
Buy Now Datasheet
Compare Parts:
2N4393 InterFET Corporation Small Signal Field-Effect Transistor, 1-Element, N-Channel, Silicon, Junction FET, TO-18
Part Life Cycle Code Contact Manufacturer
Ihs Manufacturer INTER F E T CORP
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8541.29.00.95
Samacsys Manufacturer InterFET
Case Connection GATE
Configuration SINGLE
Drain-source On Resistance-Max 100 Ω
FET Technology JUNCTION
JEDEC-95 Code TO-18
JESD-30 Code O-MBCY-W3
Number of Elements 1
Number of Terminals 3
Operating Temperature-Max 150 °C
Package Body Material METAL
Package Shape ROUND
Package Style CYLINDRICAL
Polarity/Channel Type N-CHANNEL
Power Dissipation Ambient-Max 1.8 W
Power Dissipation-Max (Abs) 1.8 W
Qualification Status Not Qualified
Surface Mount NO
Terminal Form WIRE
Terminal Position BOTTOM
Transistor Application SWITCHING
Transistor Element Material SILICON

Alternate Parts for 2N4393

This table gives cross-reference parts and alternative options found for 2N4393. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of 2N4393, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
2N4393 Micro Electronics Ltd Check for Price Small Signal Field-Effect Transistor, 1-Element, N-Channel, Silicon, Junction FET, TO-18, 2N4393 vs 2N4393
2N4393 National Semiconductor Corporation Check for Price TRANSISTOR N-CHANNEL, Si, SMALL SIGNAL, JFET, TO-18, FET General Purpose Small Signal 2N4393 vs 2N4393
2N4393 NEC Electronics America Inc Check for Price Small Signal Field-Effect Transistor, 1-Element, N-Channel, Silicon, Junction FET, TO-18, 2N4393 vs 2N4393
2N4393 Calogic Inc Check for Price Small Signal Field-Effect Transistor, 1-Element, N-Channel, Silicon, Junction FET, TO-18, 2N4393 vs 2N4393
Part Number Manufacturer Composite Price Description Compare
2N4393 Crimson Semiconductor Inc Check for Price Small Signal Field-Effect Transistor, 1-Element, N-Channel, Silicon, Junction FET, TO-18, TO-18, 3 PIN 2N4393 vs 2N4393
2N4393 NXP Semiconductors Check for Price TRANSISTOR 40 V, N-CHANNEL, Si, SMALL SIGNAL, JFET, TO-18, METAL PACKAGE-3, FET General Purpose Small Signal 2N4393 vs 2N4393
2N4393 NEC Electronics Group Check for Price Small Signal Field-Effect Transistor, 1-Element, N-Channel, Silicon, Junction FET, TO-18, 2N4393 vs 2N4393
2N4393-E3 Vishay Intertechnologies Check for Price Small Signal Field-Effect Transistor, 1-Element, N-Channel, Silicon, Junction FET, TO-206AA, LEAD FREE, HERMETIC SEALED, TO-18, 3 PIN 2N4393 vs 2N4393-E3
2N4393 Advanced Semiconductor Inc Check for Price Small Signal Field-Effect Transistor, 1-Element, N-Channel, Silicon, Junction FET, TO-18, TO-18, 3 PIN 2N4393 vs 2N4393
2N4393 Temic Semiconductors Check for Price Small Signal Field-Effect Transistor, 1-Element, N-Channel, Silicon, Junction FET, TO-206AA, 2N4393 vs 2N4393
2N4393 Space Power Electronics Inc Check for Price Small Signal Field-Effect Transistor, 1-Element, N-Channel, Silicon, Junction FET, TO-92, TO-92, 3 PIN 2N4393 vs 2N4393
2N4393 Central Semiconductor Corp Check for Price Small Signal Field-Effect Transistor, 1-Element, N-Channel, Silicon, Junction FET, TO-18, 2N4393 vs 2N4393
2N4393 TT Electronics Power and Hybrid / Semelab Limited Check for Price Si, SMALL SIGNAL, FET, TO-18, METAL PACKAGE-3 2N4393 vs 2N4393
2N4393 TT Electronics Resistors Check for Price Small Signal Field-Effect Transistor, 1-Element, Silicon, TO-18, METAL PACKAGE-3 2N4393 vs 2N4393

2N4393 Related Parts

2N4393 Frequently Asked Questions (FAQ)

  • The maximum operating temperature range for the 2N4393 is -55°C to 150°C.

  • To ensure linear operation, the 2N4393 should be biased with a voltage source and a current-limiting resistor to set the desired drain current. The gate-source voltage should be set to around -2V to -4V to achieve a linear transfer characteristic.

  • The maximum power dissipation for the 2N4393 is 1W, and it is recommended to derate the power dissipation by 2.5mW/°C above 25°C to ensure reliable operation.

  • Yes, the 2N4393 can be used as a switch, but it is not recommended due to its relatively high gate-source voltage threshold (around -2V) and high drain-source resistance (around 100 ohms). A dedicated switch transistor like the 2N7000 or 2N3904 would be a better choice.

  • To protect the 2N4393 from ESD, it is recommended to handle the device with an anti-static wrist strap or mat, and to use ESD-sensitive handling procedures. Additionally, the device should be stored in an anti-static bag or tube to prevent damage during storage and shipping.

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