Specifications:

Drain source voltage VDS 600 V
Drain-gate voltage RGS = 20 kΩ VDGR 600
Gate source voltage VGS ± 14
Gate-source peak voltage,aperiodic Vgs ± 20
Continuous drain current TA = 35 °C ID 0.1 A
DC drain current, pulsed TA = 25 °C ID puls 0.4
Power dissipation TA = 25 °C Ptot 1 W