The STTFS015N10MCL from onsemi is a MOSFET with Continous Drain Current 42 A, Drain Source Resistance 10.6 to 19.8 mohms, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for STTFS015N10MCL can be seen below.