The BZX55C11 is a 200 volt, 500 mA Zener diode, developed by Yangjie. It is designed for use in a wide range of electronic circuits for voltage regulation and voltage protection applications. Its low capacitance offers excellent transient protection against transients such as motor start-up, electrical arcs, and ESD. The BZX55C11 is rated at 200 V, and its forward voltage drop is 45 V, allowing the design of higher efficiency and reliable linear regulators. It's robust design allows operation across a wide temperature range, making it suitable for a variety of temperature applications, including automotive and industrial applications. The BZX55C11 is AEC-Q101 qualified, allowing it to be used in harsh environments.