The 2SK2881C from Isahaya Electronics is a Junction Field Effect Transistor (JFET) with Drain Saturation Current 1.0 to 3.0 mA, Gate Source Voltage -50 V, Forward Transfer Admittance 8 mS, Continous Drain Current 20 mA, Drain Source Resistance 70 Ohm. Tags: Through Hole. More details for 2SK2881C can be seen below.