The PN4392 TO-92 3L RoHS from Linear Systems is a Junction Field Effect Transistor (JFET) with Drain Saturation Current 25 to 150 mA, Gate Source Voltage 0.7 to 1 V, Continous Drain Current 6 mA, Drain Source Breakdown Voltage 0.3 to 0.4 V, Drain Source Resistance 60 Ohm. Tags: Through Hole. More details for PN4392 TO-92 3L RoHS can be seen below.