The 2N4392 from CALOGIC is a Junction Field Effect Transistor (JFET) with Drain Saturation Current 25 to 75 mA, Gate Source Voltage -40 V, Drain Source Resistance 60 Ohm, Gate Current 10 mA, Gate Reverse Current -200 nA. Tags: Through Hole. More details for 2N4392 can be seen below.