/SemiconductorThe BZD27C18P-E3-08 is a zener diode made by Vishay/Semiconductor. This diode is rated for 18 volts of power and can handle a maximum wattage of 0.8 watts. It has a tolerance of 5%, meaning that the actual voltage may be up to 5% different from the rated voltage. The diode is suitable for applications where it is necessary to regulate voltages in a circuit. This type of diode is also used in power supplies, protection circuits, and voltage clamping.