The GA10JT12-263 from Navitas Semiconductor is a Junction Field Effect Transistor (JFET) with Continous Drain Current 10 to 25 A, Drain Source Breakdown Voltage 1200 V, Drain Source Resistance 0.1 to 0.175 Ohm, Gate Current 1.3 A, Gate Reverse Current 1.3 A. Tags: Surface Mount. More details for GA10JT12-263 can be seen below.