The FC4B22670L from Panasonic Corporation is a MOSFET with Continous Drain Current 6.1 A, Drain Source Resistance 29 to 100 Milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage 0.35 to 1.4 V. Tags: Chip. More details for FC4B22670L can be seen below.