The 1N5361B is a 1-A (1 Amp) Zener diode made by Diotec. It has a maximum voltage of 39V, a maximum power dissipation of 500mW, and a clamped reverse current of 5mA. It provides low capacitance, high reliability, and low noise characteristics. It is used as a voltage regulator, a protector against overvoltage, and other power circuit applications.