The P20LF4QTKD from Shindengen America is a MOSFET with Continous Drain Current 20 A, Drain Source Resistance 12.3 to 26 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.5 to 2.5 V. Tags: Surface Mount. More details for P20LF4QTKD can be seen below.