The RF4C100BC from ROHM Semiconductor is a MOSFET with Continous Drain Current -10 to 10 A, Drain Source Resistance 12 to 37.6 Milliohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage -1.2 to -0.5 V. Tags: Surface Mount. More details for RF4C100BC can be seen below.