The ZM4733A-GS08 is a 5.1 Volt 1 Watt Zener diode manufactured by Vishay with a 5% tolerance. It is a standard Zener diode designed for use in electronic circuits for regulation of voltage, surge protection, or clipping. It is a low-power Zener diode that can be used in a wide variety of applications, from power supplies, to telecommunications, to voltage regulation, to data communications. The ZM4733A-GS08 has an operating temperature range of -55 to +150 degrees C. It is a low-noise device with an IR rating of 100nA at 1mV. The device also features a reverse working voltage of 7 Volts, a maximum reverse voltage of 22 volts, and a maximum power dissipation of 1 watt.