This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

ESD_protection for data lines.

We are interested in protecting the communication data lines (CAN / RS485 communication lines) connected to an Automotive grade industrial connector. The pins connecting this connector are driven by a 3.3V typical operating condition. 

1. What are the critical criteria for protecting my device from ESD? 
2. How Important is the capacitance of the TVS diode/ESD?
3. Should we select a TVS diode depending on its Rated Working Peak Voltage and clamping voltage? 
4. ESD contact level - (air and contact)
5. What is the role of Peak Impulse Current on selecting a ESD/ TVS diode?
6. Criteria for ESD on a power line ?