The IPD30N12S3L-31 from Infineon Technologies is a MOSFET with Continous Drain Current 20 to 30 A, Drain Source Resistance 26 to 42 Mohms, Drain Source Breakdown Voltage 120 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 1.2 to 2.4 V. Tags: Through Hole. More details for IPD30N12S3L-31 can be seen below.