OPB875N51

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Optical sensors are devices that can detect the presence of an object, measure the intensity of light, or recognize its color. Photointerrupters are a type of optical sensor, particularly suited for verifying the passage of an object of a given size because it is able to detect objects, which can range from a light source or from just a switch point, when it is interrupted by the passage of an object.The OPB875N51 is a slot type photointerrupter with a transistor output. This photointerrupter works by emitting an infrared light from an internal LED onto a photo transistor through a slot-type optical interruptor. When an object is placed within the slot, the emitted light is blocked and the output transistor is changed, thereby creating a change in the output signal.The OPB875N51 is ideally suited for applications in a wide range of industries, such as coin operated equipment, vending machines, automatic door openers, and medical equipment, as it can detect objects up to nine millimeters wide. This photointerrupter is designed with a narrow gap width of 0.5 mm and a switching distance of up to 1.5 mm, enabling highly accurate and reliable object detection.The OPB875N51 has a fast response time, low temperature coefficient, and low noise detection. It is also designed with a wide operating temperature range from -25 to +85°C and a long life expectancy of up to 10 million switching cycles. It is low voltage powered and is designed to operate with a nominal voltage of 4.5 – 20 VDC. The device also features a built-in surge protection circuit, which provides electrical isolation from the power supply and protects against voltage spikes and electrical surges. The device is compliant with all relevant RoHS directives.The OPB875N51 offers good performance in a higher ambient photography radiation detection and can be used with a variety of sensors. It also works well as a cursor switch, allowing a user to quickly and accurately control the cursor location in a variety of applications. It is also able to detect objects that pass quickly through its slot, providing instant response for time critical applications. This versatile optical sensor is highly reliable and designed for industrial and commercial applications. It has a wide range of applications, including bank note authentication, counterfeit coin detection, white/black paper recognition, label printing validation, printed circuit board (PCB) recognition, thermal transfer indicator detection, optical character recognition (OCR), curtain/door detection, and much more.

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