Crafted with EdrawMax, this *Diode Symbols and Functions Template* is a useful guide for electronic components. It shows the symbol of an LED Diode, which emits light when forward - biased, making it an energy - efficient lighting option. The Photo Diode symbol represents its function of converting light into current for optical detection. There's also the Bidirectional Photo Diode, which can detect light from two directions, enhancing sensitivity. The Common Cathode Photo Diode allows multiple diodes to share a cathode for combined detection. And the LED Bicolor Diode can emit two colors depending on the applied current direction. Ideal for electrical engineers, students, or hobbyists, it helps in quickly understanding the functions corresponding to different diode symbols in circuit design.