30 V / 78 A — low Rds(on) for high-efficiency switching
The IRLB8743PBF is an N-channel MOSFET with 30 V drain-to-source voltage and 78 A continuous drain current.
Total gate charge is 54 nC at 4.5 V. Input capacitance Ciss is 5110 pF at 15 V drain bias.
It is ROHS3 compliant. The series is Infineon's HEXFET family, a mature trench-technology platform with broad second-source availability from other manufacturers (e.g., STMicroelectronics, ON Semiconductor) for pin-compatible TO-220 N-channel 30 V / 78 A devices, though no official cross-reference is listed in this record.