: MAXIMUM RATINGS Rating Drain-Source Voltage Drain-Gate Voltage Reverse Gate-Source Voltage Forward Gate Current Total Device Dissipation (a TA = 25°C Derate above 25°C Storage Temperature Range Symbol vDs vdg vgsr IGF PD T stg Value 40 40 40 50 1.8 10 - 65 to + 200 Unit Vdc Vdc Vdc mAdc Watts mW/°C 'C 2N3970 2N3971 2N3972 CASE 22-03, STYLE 4 TO-18 (TO-206AA) JFET SWITCHING N-CHANNEL DEPLETION ELECTRICAL CHARACTERISTICS (TA = 25C unless otherwise noted.) Characteristic OFF CHARA.