The J109-D26Z from onsemi is a Junction Field Effect Transistor (JFET) with Drain Saturation Current 40 mA, Gate Source Voltage -25 V, Drain Source Resistance 12 Ohm, Gate Current 10 mA, Gate Reverse Current -3.0 to -200 nA. Tags: Through Hole. More details for J109-D26Z can be seen below.