ESD countermeasures are necessary at all points where electrical devices are likely to come into contact with a person or an object. Examples include USB2.0, USB3.0, output terminals, LAN or other points where a user connects or disconnects a connector, cases in which an operation button of an electrical product is touched, or a device touches a board during a production process, and also cases in which boards are connected to each other using a connector. Parts that are installed at these points as ESD countermeasures are called “ESD protective devices*.”
* This is a generic term for an ESD protective suppressor, an ESD protective diode, an ESD protective filter, an ESD protective device, ESD protection, and a TVS diode. On these pages, all of these devices are referred to as ESD protective devices.