The 2N4861 from New Jersey Semiconductor is a Junction Field Effect Transistor (JFET) with Gate Source Voltage 30 V, Continous Drain Current 8.0 to 80 mA, Drain Source Breakdown Voltage 30 V, Drain Source Resistance 60 Ohm, Gate Current 50 mA. Tags: Through Hole. More details for 2N4861 can be seen below.