The SJD12C24L01 is an ESD (electrostatic discharge) protection diode manufactured by Yageo. It is part of the SOD-123S RoHS (Restrictions on the Use of Certain Hazardous Substances) series and is designed to protect against static buildup. The diode has a forward operating voltage of 6.0V and its maximum reverse operating voltage is 24V. It is also rated to have a maximum current rating of 5mA. The part is small in size for easy mounting and meets the environmental and quality standards for RoHS products.