Electrostatic-sensitive device

Warning symbol denoting a device's susceptibility to electrostatic discharge.
Symbol for an ESD protection device – EPA
Alternate warning symbol
Symbol of an ESD grounding point for all components

An electrostatic-sensitive device (often abbreviated ESD) is any component (primarily electrical) that can be damaged by common static charges that build up on people, tools, or other non-conductors or semiconductors. ESD also stands for electrostatic discharge.