The KFCAB21C00L from Nuvoton Technology is a MOSFET with Continous Drain Current 20.0 to 47.6 A, Drain Source Resistance 0.70 to 3.20 milli-ohm, Drain Source Breakdown Voltage 12 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage 0.35 to 1.40 V. Tags: Chip. More details for KFCAB21C00L can be seen below.