The LTR-553ALS-WA is an Optically Operated Ambient Light Sensor manufactured by Lite-On. This electronic part is designed to sense the ambient light intensity, and is ideal for use in mobile devices, automotive applications, and other consumer electronics. It features SMD package design, low power consumption, and a viewing angle of ±25°. The LTR-553ALS-WA is certified for RoHS compliance, meaning that it does not contain any hazardous materials, such as lead, lead-based compounds, or mercury. The device includes a response range of 0.2 to 10,000 lux, and a power supply of ±2V.