The FCAB21920L from Panasonic Corporation is a MOSFET with Continous Drain Current 47.6 A, Drain Source Resistance 0.7 to 3.2 Milliohm, Drain Source Breakdown Voltage 12 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage 0.35 to 1.4 V. Tags: Chip. More details for FCAB21920L can be seen below.