The KFJ4B01120L from Nuvoton Technology is a MOSFET with Continous Drain Current -2.6 to -5.4 A, Drain Source Resistance 34 to 170 milli-ohm, Drain Source Breakdown Voltage -12 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage -0.3 to -1.0 V. Tags: Chip. More details for KFJ4B01120L can be seen below.