The 1SMAF4759A smaf zener diode, manufactured by Jingdao, is a surface mount component designed for use in various electronic applications. It has a standard 500 mW power rating and a maximum reverse voltage of 36 V. This device is ideal for suppressing transient voltages, clamping, and voltage regulation. It complies with the RoHS requirements, making it safe and compliant with most electronic industry standards.