The IPD30N03S4L-14 from Infineon Technologies is a MOSFET with Continous Drain Current 27 to 30 A, Drain Source Resistance 11.2 to 20.5 Mohms, Drain Source Breakdown Voltage 30 V, Gate Source Voltage 16 V, Gate Source Threshold Voltage 1 to 2.2 V. Tags: Surface Mount. More details for IPD30N03S4L-14 can be seen below.