The DC Components DL4757A is a single diode, Zener diode, 1 watt rated, 51V voltage, SMD (surface mount device) type, DL41 package and can handle up to 90mA of current. It is designed to provide a reliable voltage regulation in a variety of applications. The DL4757A is suitable for use in many applications, including but not limited to, voltage regulation, power supplies, LED lighting, over-voltage protection, and high-voltage drivers. It is made with high quality materials to ensure a long operational lifetime and maximum reliability.