ESD Protection Devices (anti-static components)
An ESD protection device protects a circuit from an Electrostatic discharge (ESD), in order to prevent a malfunction or breakdown of an electronic device. Murata has an extensive lineup of ESD protection devices including specialized devices for high-speed communication, ultra-miniature devices, and integrated noise filters. These devices can also be used to replace varistors, zener diodes (TVS), and suppressors.
What are ESD Protection Device?
Functions required for ESD protection device
Not ESD issue: Insulated from GND with IC drive voltage.
ESD issue: Conducts with GND and releases high voltage to GND.
Breakdown voltage
Breakdown voltage means voltage at which 1mA current flow.
Unidirectional / Bidirectional TVS
Unidirectional: current starts to flow the breakdown voltage on one side.
Bidirectional: current starts to flow at the same voltage.