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other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Linear Integrated Systems.

FEATURES 

DIRECT REPLACEMENT FOR SILICONIX 2N4393 

LOW ON RESISTANCE 

LOW GATE OPERATING CURRENT 

FAST SWITCHING 

ABSOLUTE MAXIMUM RATINGS

Maximum Temperatures 

Storage Temperature ‐65°C to +200°C 

Operating Junction Temperature ‐55°C to +200°C 

Maximum Power Dissipation 

Continuous Power Dissipation  

1800mW 

MAXIMUM CURRENT

Gate Current (Note 1) 

MAXIMUM VOLTAGES 

Gate to Drain Voltage /  Gate to Source Voltage ‐40V 

2N4393 ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted)

SYMBOL 

CHARACTERISTIC 

MIN 

TYP. 

MAX 

UNITS 

CONDITIONS 

Gate to Source Breakdown Voltage ‐40 

‐‐ 

‐‐ 

 

V 

Gate to Source Cutoff Voltage ‐0.5 

‐‐ 

‐3 

Gate to Source Forward Voltage 

‐‐ 

0.7 

1 

Drain to Source On Voltage 

‐‐ 

0.25 

0.4 

Drain to Source On Voltage 

‐‐ 

0.3 

‐‐ 

 

Drain to Source On Voltage 

‐‐ 

0.35 

‐‐ 

 

Drain to Source Saturation Current

5 

‐‐ 

30 

mA 

Gate Reverse Current 

‐‐ 

‐5 ‐100  

 

pA 

Gate Operating Current 

‐‐ 

‐5 

‐‐ 

VDG = 15V,  ID = 10mA 

 

 

 

Drain Cutoff Current 

‐‐ 

5 

100 

VDS = 20V,   VGS = ‐5V 

‐‐ 

5 

‐‐ 

VDS = 20V,   VGS = ‐7V 

‐‐ 

5 

‐‐ 

VDS = 20V,   VGS = ‐12V 

Drain to Source On Resistance 

‐‐ 

‐‐ 

100 Ω 

VGS = 0V,   ID = 1mA 

2N4393 DYNAMIC ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) 

SYMBOL 

CHARACTERISTIC 

TYP 

MIN 

MAX 

UNITS 

CONDITIONS 

Forward Transconductance 

6 

‐‐ 

‐‐ 

mS 

Output Conductance 

25 

‐‐ 

‐‐ 

µS 

Drain to Source On Resistance 

‐‐ 

‐‐ 

100 Ω 

Input Capacitance 

12 

‐‐ 

14  

 

pF 

Reverse Transfer Capacitance 

3.3 

‐‐ 

3.5 

3.2 

‐‐ 

‐‐ 

2.8 

‐‐ 

‐‐ 

Equivalent Input Noise Voltage 

3 

‐‐ 

‐‐ 

nV/√Hz 

2N4393 SWITCHING ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) 

SYMBOL 

CHARACTERISTIC 

TYP 

MIN 

MAX 

UNITS 

CONDITIONS 

Turn On Time 

2 

‐‐ 

15  

 

ns 

 

 

 

2 

‐‐ 

5 

Turn Off Time 

6 

‐‐ 

50 

13 

‐‐ 

30 

Notes: 1. Absolute ratings are limiting values above which serviceability may be impaired 

             2. Pulse test: PW ≤ 300µs, Duty Cycle ≤ 3% 

2N4393 SWITCHING CIRCUIT PARAMETERS                                                                                                                                         SWITCHING CIRCUIT 

3200Ω 

 

3mA  

  

 

  

 

  

 

  

 

  

 

2N4393

Single N-Channel JFET switch

Linear Systems replaces discontinued Siliconix 2N4393

The 2N4393 features many of the superior

characteristics of JFETs which make it a good choice

for demanding analog switching applications and for

specialized amplifier circuits.

2N4393 Applications:

Analog Switches

Choppers,

Sample-and-Hold

Normally “On” Switches, Current Limiters

2N4393 Benefits:

Low Error Voltage

High-Speed Analog Circuit Performance

Negligible “Off-Error,” Excellent Accuracy

Good Frequency Response, Low Glitches

Eliminates Additional Buffering

Micross Components Europe

Tel: +44 1603 788967

Available Packages:

2N4393 in TO-18

2N4393 in bare die.

Contact Micross for full package and die dimensions

TO-18 (Bottom View)