The ON Semiconductor QSE113E3R0 Phototransistor IR 30V Sidelooker is a high-performance, low-cost optical sensor designed for a wide range of applications. This device features a 30V reverse voltage rating, a wide spectral response range from 400nm to 1100nm, and a high sensitivity of up to 0.5A/W. The QSE113E3R0 is ideal for use in industrial, automotive, and consumer applications, as it is capable of detecting both visible and infrared light. The device is also designed to be highly reliable and robust, with a long lifetime and low power consumption. With its wide range of features and capabilities, the QSE113E3R0 is an excellent choice for any application requiring an optical sensor.