QSA158

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Optical Sensors - Photo Detectors - Logic Output

The QSA158 optical sensor is designed for applications that require a reliable, logic-level output of photo-detected light. The sensor is used in many applications, including medical, automotive, consumer electronics, industrial automation, motion control, lighting systems, retail displays, and security/alarm systems.The QSA158 sensor consists of a light-sensitive phototransistor (PT) and a photodiode (PD) that together detect incoming light and transmit a logic-level signal to indicate the presence of light. The PT and PD are both mounted directly to a square printed circuit board (PCB) with four pins arranged in a row – the voltage, common, and logic pins.When light shines onto the photodiode, it creates a current flow which the phototransistor amplifies. When the current reaches a specific level, the output signal changes state from low to high or vice versa, depending on the configuration of the sensor. The output can be digital or analog, and can be always on or always off, depending on the set-up of the QSA158.The output of the QSA158 is adjustable and can be set to any voltage level, from low to high. This flexibility makes it suitable for applications such as automotive lights, security systems, and motion detectors. The QSA158 can also be connected to other logic devices, such as microcontrollers, for further signal manipulation.The QSA158 is designed to work in a variety of lighting conditions, from street lights to indoor lighting. It is waterproof, dust-proof, and vibration-resistant. The QSA158 is also very efficient, consuming very little power to operate, making it an ideal choice for energy-conscious applications.Overall, the QSA158 is designed to be a reliable yet flexible optical sensor that can be used in a variety of applications. Its low costs, low power consumption, adjustable output, and robust construction make it a suitable choice for a variety of applications that require a reliable, reliable, logic-level output of photo-detected light.

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