The FC6B21150L from Panasonic Corporation is a MOSFET with Drain Source Resistance 3 to 10 milliohm, Drain Source Breakdown Voltage 12 V, Gate Source Voltage 10.5 V, Gate Source Threshold Voltage 0.35 to 1.4 V, Gate Charge 26 nC. Tags: Chip. More details for FC6B21150L can be seen below.