Single Zener diodes are discrete semiconductor components designed with a specific voltage regulation function. Zener diodes operate in the reverse breakdown region, maintaining a constant voltage across their terminals when the applied voltage exceeds a certain threshold. Single Zener diodes provide a simple and effective solution for voltage regulation in electronic circuits, protecting connected devices from excessive voltage fluctuations. The price of single Zener diodes varies based on factors such as the manufacturer, power dissipation capability, and voltage regulation precision. When purchasing single Zener diodes, consider the required voltage rating to ensure it meets the needs of your application. Take note of the power dissipation capability to prevent overheating issues. Additionally, verify the Zener voltage tolerance and temperature coefficients for accurate voltage regulation.