The 2N5397 from New Jersey Semiconductor is a Junction Field Effect Transistor (JFET) with Drain Saturation Current 10 to 30 mA, Gate Source Voltage 25 V, Forward Transfer Admittance 5.5 to 200 mS, Continous Drain Current 1 nA, Gate Current 1 µA. Tags: Through Hole. More details for 2N5397 can be seen below.