The PN4392 TRE from Central Semiconductor 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 50 mA, Gate Reverse Current 0.1 nA. Tags: Through Hole. More details for PN4392 TRE can be seen below.