The MMTV431A is a shunt regulator diode designed by Diotec as a Current Regulator for SOT-23 space-saving packages. This device is suitable for applications such as battery-operated systems and circuit protection. Its maximum working voltage is 1.24 to 20V and the maximum current rating is 0.1 mA. It features low leakage current, excellent thermal stability, and low power dissipation. This diode has a wide temperature range from -65 to +175 °C and it is made of the ultra stable proprietary silicon material which ensures a high degree of reliability and safety.