Diodes Function Diodes are semiconductor devices that conduct current in one direction and block it in the opposite direction. They enable rectification, switching, and circuit protection. Key benefits Provide one way current control, protect circuits from reverse voltages, support efficient power conversion in rectifier stages, and enable fast switching in digital and RF applications. Compatibility and packages Available in multiple package types for through hole and surface mount, compatible with common PCB processes and circuit layouts. Check the specific model datasheet for footprint, pinout, and mounting guidance. Size and materials Encased in compact epoxy or plastic packages. Most diodes are silicon based; fast and Schottky varieties use specialized materials. Practical size ranges from small signal diodes to higher power components. Performance Ratings vary by model. Key considerations include maximum repetitive reverse voltage, forward current, and forward voltage drop. Some variants offer fast recovery or low forward drop for higher efficiency. Use scenarios 1) Rectifying AC to DC in power supplies. 2) Providing reverse polarity protection in battery powered devices. 3) Fast switching in digital or RF circuits such as detectors or clippers. Selection tips Refer to the specific diode model datasheet for exact ratings, package type, and thermal requirements. Verify correct orientation during installation and provide adequate cooling for higher power applications.