The SZYY0603O is a type of Light Emitting Diode (LED) manufactured by Yongyu Photoelectric. It is 0603 in size and is RoHS compliant. This LED emits green light and has a forward voltage of 3.0V. It has a maximum forward current of 25mA, a maximum reverse voltage of 5V, and a maximum power dissipation of 30 mW. This LED is often used in indicator and backlighting applications.