CAN bus interface with industrial temperature rating
The Microchip MCP2551T-E/SN is a half-duplex CAN transceiver serving as the physical-layer interface between a CAN protocol controller and the differential bus. The 200 mV receiver hysteresis provides built-in noise rejection on the bus lines, reducing false bit detection in electrically noisy environments.
Temperature range and supply — where it fits the BOM
The 4.5 V minimum supply means it stays operational through a 5 V rail that sags during cranking or brownout conditions, a common requirement in vehicle body electronics.
For production runs, the active status means no last-time-buy pressure, making it a stable line item for multi-year builds.