The FJ4B01100L from Panasonic Corporation is a MOSFET with Continous Drain Current -4.1 A, Drain Source Resistance 57 to 290 Milliohm, Drain Source Breakdown Voltage -12 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage -1 to -0.3 V. Tags: Chip. More details for FJ4B01100L can be seen below.