OPB871T51TX

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Optical Sensors are necessary tools for circuit design and automation applications. One of the most used optical sensors, Photointerrupters, are simple devices that sense the presence of objects by using optical effects. Optically isolated and with normally open or normally closed outputs, Photointerrupters are ideal for fast-response sensing applications gone unnoticed by the user. Slot type Photointerrupters, such as the OPB871T51TX, are designed to detect objects inserted in slots and feature transistor output.

The OPB871T51TX is a slot-type Photointerrupter with a transistor output. It is designed to detect the presence of objects inserted in the slot of the device and output a signal in response. The device features a 610 nanometer gallium arsenide infrared emitter and an integrated Schottky diode. The OPB871T51TX is designed to detect objects with a width of 0.25mm or greater.

The OPB871T51TX is designed to provide fast response times and accurate detection of objects inserted into its slot. It has an output current of up to 25mA and voltage rating of up to 80V. The device is optically isolated for protection against electrical spikes. The built-in Schottky diode polarity protection ensures that false triggering and reverse voltage won’t affect the performance of the device.

The OPB871T51TX is an ideal optical sensor for applications such as detecting the presence of a sheet of paper and activating an alarm, detecting a book cover for book scanning machines, and sensing objects in a conveyor belt. It can also be used in positioning systems, material handling, security and factory automation, and even in medical applications.

The working principle of the OPB871T51TX is simple. When an object is inserted into the slot, the light emitted from the gallium arsenide infrared emitter is blocked by the object, causing a darkening of the slot. This darkening triggers the integrated Schottky diode which then triggers the internal logic circuit, resulting in a signal output. This signal output is commonly used to activate a device or system.

To sum up, the OPB891T51TX is a slot-type Photointerrupter with a transistor output. It is ideal for fast-response, accurate sensing applications and can be used in a wide variety of applications ranging from book scanning machines, to material handling, to security systems. The device features an infrared emitter and integrated Schottky diode for fast response times and protection against electrical spikes. The working principle of the OPB871T51TX is simple, involving the sensing of objects inserted into the slot and the triggering of the internal logic circuit for output.

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