The ZHIDE SMA4728A Zener diode is a 100uA@1V, 10O, 3.14V~3.47V, 1W 3.3V device with SMA package and ROHS compliant. It is ideal for using in surge protection applications, as it has a low breakdown voltage, allowing for excellent electrostatic discharge (ESD) protection. The device features low leakage current and good reliability, perfect for use in low power applications. The low thermal resistance of this device ensures that it will remain cool even under heavy loads, which makes it suitable for dissipating large amounts of power.