Diotec: Application Note about ESD Protection 2020-04-08
Diotec offers a wide range of ESD protection diodes both in single line and dual line configurations in various packages ranging from general-purpose (SOD-323) to small-size 0201 packages, supporting a wide range of signal speeds. They can provide transient protection for data lines and I/O ports as per IEC 61000-4-2 (air and contact discharge).