The FDD8424H from onsemi is a MOSFET with Continous Drain Current -20 to 20 A, Drain Source Resistance 24 to 54 milliohm, Drain Source Breakdown Voltage -40 to 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -3 to 3 V. Tags: Surface Mount. More details for FDD8424H can be seen below.