BD41044FJ-C CAN FD Transceivers for Automotive ROHM Semiconductor BD41044FJ-C CAN FD Transceivers for Automotive are for CAN-FD communication (fully ISO 11898-2:2016 compliant). The device is equipped with circuitry that functions as transmitter and receiver, necessary for High-speed CAN-FD communication (up to 5Mbps).