The BV03C ESD Protection Device is an ultra-thin, surface-mount, ESD-protected transistor-based protection device manufactured by Yongyutai Electronics. It offers reverse-biased, bidirectional protection from electrostatic discharge (ESD) and is designed for use in low-voltage applications such as USB interfaces. It features a SOD-323 (Small Outline Diode) package, a 4V to 20V operating range, and a 3V breakdown voltage. The device is RoHS compliant and is suitable for a range of applications, such as consumer electronics, automobiles, and telecommunications.