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FEATURES 

DIRECT REPLACEMENT FOR SILICONIX J210 

HIGH GAIN  

HIGH INPUT IMPEDANCE 

LOW INPUT CAPACITANCE 

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

Maximum Temperatures 

Storage Temperature ‐55°C to +150°C 

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

Maximum Power Dissipation 

Continuous Power Dissipation  

360mW 

Derating over temperature 

3.27 mW/°C 

MAXIMUM CURRENT

Gate Current (Note 1) 

10mA 

MAXIMUM VOLTAGES 

Gate to Drain Voltage or  Gate to Source Voltage  ‐25V 

  

LSJ210 ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted)

SYMBOL 

CHARACTERISTIC 

MIN 

TYP. 

MAX 

UNITS 

CONDITIONS 

Gate to Source Breakdown Voltage ‐25 

‐‐ 

‐‐ 

V 

Gate to Source Cutoff Voltage ‐1 

‐‐ 

‐3 

Drain to Source Saturation Current (Note 2) 

2 

‐‐ 

15 

mA 

Gate Reverse Current (Note 3) 

‐‐ 

‐‐ 

‐100 

pA 

Gate Operating Current (Note 3) 

‐‐ 

‐10 

‐‐ 

pA 

VDS = 10V,  ID = 1mA 

Drain to Source On Resistance 

‐‐ 

‐‐ 

50 Ω 

IG = 1mA,  VDS = 0V 

 

 

    

 

LSJ210 DYNAMIC ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) 

SYMBOL 

CHARACTERISTIC 

MIN 

TYP. 

MAX 

UNITS 

CONDITIONS 

Forward Transconductance 

4000 

‐‐ 

12000 

µmho 

VDS = 15V,   VGS = 0V , f = 1kHz 

Output Conductance 

‐‐ 

‐‐ 

150 

Input Capacitance 

‐‐ 

4 

‐‐ 

pF 

Reverse Transfer Capacitance 

‐‐ 

1 

‐‐ 

Equivalent Noise Voltage 

‐‐ 

10 

‐‐ 

nV/√Hz 

 

 

    

 

LSJ210 SWITCHING CHARACTERISTICS @ 25°C (unless otherwise noted) 

SYMBOL 

CHARACTERISTIC  

UNITS 

CONDITIONS 

Turn On Time 

2  

 

ns 

 

See Switching Circuit 

Turn On Rise Time 

2 

Turn Off Time 

6 

Turn Off Fall Time 

15 

  

 

  

 

  

 

  

 

  

 

LSJ210

N-CHANNEL JFET

Linear Systems replaces discontinued Siliconix J210

The LSJ210 is a n-channel JFET General Purpose

amplifier with low noise and low leakage.

The SOT-23 package is well suited for cost sensitive

applications and mass production.

(See Packaging Information).

LSJ210 Applications:

General Purpose Amplifiers

UHV / VHF Amplifiers

Mixers

Oscillators

LSJ210 Benefits:

High gain

Low Leakage

Low Noise

Micross Components Europe

Available Packages:

LSJ210 in SOT-23

LSJ210 in bare die.

Please contact Micross for full

package and die dimensions

Note 1 ‐ Absolute maximum ratings are limiting values above which LSJ210 serviceability may be impaired.  

Note 2 ‐ Pulse test duration = 2ms 

Note 3 – Approximately doubles for every 10

Tel: +44 1603 788967

SOT-23 (Top View)