5 Mbps CAN transceiver for high-temperature nodes
The NXP TJA1044GTJ is a half-duplex CAN transceiver in an 8-SOIC package, designed to handle 5 Mbps data rates on a CANbus network. It integrates one driver and one receiver with 300 mV of receiver hysteresis, operating from a 4.75V to 5.25V supply rail. The -40°C to 150°C temperature rating puts this part in the extended-range tier — it's built for under-hood automotive, engine bay sensors, or any industrial node where ambient heat pushes past the usual 125°C ceiling.
The 150°C operating temperature is the headline differentiator here. Standard CAN transceivers top out at 125°C, which forces a derating or active cooling in exhaust-adjacent modules, transmission controllers, or brake-system ECUs. The TJA1044GTJ eliminates that thermal margin squeeze — it keeps the bus alive where a 125°C part would be at its absolute limit. The 5 Mbps data rate also exceeds classic CAN 2.0 (1 Mbps), so it handles CAN FD frames without bottlenecking the bus.