Click To Buy

Information furnished by Linear Integrated Systems and Micross Components is believed to be accurate and reliable. However, no responsibility is assumed for its use; nor for any infringement of patents or

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.

www.micross.com/distribution.aspx

FEATURES 

DIRECT REPLACEMENT FOR SILICONIX J201 

LOW CUT OFF VOLTAGE 

HIGH GAIN 

ABSOLUTE MAXIMUM RATINGS @ 25°C (unless otherwise noted) 

Maximum Temperatures 

Storage Temperature ‐65°C to +150°C 

Operating Junction Temperature ‐55°C to +135°C 

Maximum Power Dissipation 

Continuous Power Dissipation  

350mW 

MAXIMUM CURRENT

Forward Gate Current (Note 1) 

50mA 

MAXIMUM VOLTAGES 

Gate to Drain Voltage 

Gate to Source Voltage 

  

 

 

J201 ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted)

SYMBOL 

CHARACTERISTIC 

MIN 

TYP. 

MAX 

UNITS 

CONDITIONS 

Gate to Source Breakdown Voltage ‐40 

‐‐ 

‐‐ 

 

V 

IG = 1µA,   VDS = 0V 

Gate to Source Cutoff Voltage ‐0.3 

‐‐ 

‐1.5 

VDS = 15V, ID = 10nA 

Drain to Source Saturation Current (Note 2) 

0.2 

‐‐ 

1 

mA 

VDS = 15V,  VGS = 0V 

Gate Reverse Current ‐2 

‐‐ 

‐100  

pA 

VGS = ‐20V,  VDS = 0V 

Gate Operating Current 

‐‐ 

‐2 

‐‐ 

VDG = 10V,  ID = 0.1mA 

Drain Cutoff Current 

‐‐ 

 2 

‐‐ 

Forward Transconductance 

0.5 

‐‐ 

‐‐ 

mS 

Input Capacitance 

‐‐ 

4.5 

‐‐ 

pF 

 

Reverse Transfer Capacitance 

‐‐ 

1.3 

‐‐ 

Equivalent Noise Voltage 

‐‐ 

6 

‐‐ 

nV/√Hz 

Micross Components Europe

Available Packages:

J201 in TO-92

J201 in bare die.

Please contact Micross for full

package and die dimensions

Note 1 ‐ Absolute maximum ratings are limiting values above which J201 serviceability may be impaired.  

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

Tel: +44 1603 788967

TO-92 (Bottom View)

J201

N-CHANNEL JFET

Linear Systems replaces discontinued Siliconix J201

The J201 is a high gain N-Channel JFET

This n-channel JFET is optimised for high gain. The

part is particularly suitable for use in low power or high

impedance amplifiers. The TO-92 package is well

suited for cost sensitive applications and mass

production.

(See Packaging Information).

J201 Applications:

Battery powered amplifiers

Audio Pre-Amplifiers

Infra-Red Detector Amplifiers

J201 Benefits:

High Input Impedance

Low Cutoff Voltage

Low Noise