The RB521CM-30T2R is a discrete semiconductor component that is designed for use in various electronic devices and circuits. It is a rectifier diode that is capable of handling a maximum reverse voltage of 30V and a forward current of 500mA. This component features a small surface-mount SOD-323 package, making it ideal for compact designs and applications where space is limited. The RB521CM-30T2R also has a low forward voltage drop and fast switching times, making it suitable for high-speed applications. Additionally, this component is RoHS compliant, ensuring that it meets strict environmental regulations. Overall, the RB521CM-30T2R is a reliable and versatile discrete semiconductor component that is commonly used in a wide range of electronic devices and circuits