
The industrial AI edge gateway supports the CANopen protocol to convert AI decision results into PDO output. To ensure normal communication of the CAN bus under strong interference, a CAN-specific TVS ESDCANFD24VAPB is required. This is named ESD (electrostatic discharge) and is a dedicated CANFD bus device with a 24V shutdown voltage of 24V. It features an AP package, SOT-23 PB bidirectional junction capacitance of 7pF, and a series common-mode inductor CML4532A-510T to suppress common-mode surges. A gas discharge tube 2R090L-5.5X6 is connected in parallel to ground at CANH/L as primary coarse protection. After passing the EN 61000-4-5 2kV surge test, the CANopen node status showed no switching errors, and the AI decision output delay was <2ms.