The SET23A03L02 is a surface-mount diode manufactured by Yageo Electronics. It is a RoHS-compliant ESD (electrostatic discharge) protection diode packaged in a SOT-23 small outline transistor package. The SET23A03L02 provides ESD protection up to 30kV, and the wide range of operating temperatures (-40°C to +125°C) makes it suitable for most applications. The diode is ideal for protecting sensitive components from harmful static buildup. It has a low capacitance, which helps to ensure that signals remain clean and fast, while its small size allows for easy mounting and reliable soldering.