The KFCAB21830L from Nuvoton Technology is a MOSFET with Continous Drain Current 12.4 to 31.0 A, Drain Source Resistance 1.6 to 8.5 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 KFCAB21830L can be seen below.