Optical Sensors - Phototransistors

Phototransistors are transistors that are sensitive to light. These transistors are commonly used as photodetectors in a wide range of optical sensors and other electronic devices. A phototransistor typically consists of a semiconductor junction with an intrinsic layer, which is sensitive to light. When light is incident on the junction, it generates electron-hole pairs, which cause a current to flow through the transistor. Phototransistors are available in a variety of sizes, gain levels, and packaging options to suit different applications. These transistors are an essential component of many optical sensors and other electronic devices, providing accurate and reliable detection of light.