OPB872N55TX

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Optical sensors offer a wide range of functionalities for a variety of applications. Among these optical sensing device types are photointerrupters, which are passive infrared (IR) devices that provide control-relay functions. One such device is the OPB872N55TX, a slot type photointerrupter with a transistor output.

Photointerrupters are employed in a wide range of applications. From industrial machinery and commercial building automation to automotive electronics and consumer home appliances, these devices can be found in many places. They offer reliable, repeatable on/off switching that is useful in detecting position, speed, count, and other features for these systems.

The OPB872N55TX is a 3-pin opto-device optimized for use in short distance sensing applications. It has a built-in slot-type optocoupler that consists of an infrared-emitting diode (IRED) and an NPN phototransistor. This photointerrupter operates from a supply voltage between 3.0V and 8.0V and is easy to use in a simple circuit.

When the object under detection passes through the slot, the IRED emits a signal that is sensed by the phototransistor and the NPN phototransistor is activated. This results in a proportional current being passed through the output pin and the output voltage drops to ground. The OPB872N55TX can detect most objects with a width of 0.8mm to 3.5mm.

The OPB872N55TX can be used for a variety of short distance sensing applications including detecting the positions of objects, counting objects, or detecting the presence of objects. Such applications include motorized actuators, industrial automation, home automation, robotics, printing equipment, and other areas where sensing of movement or position of an object is required.

In addition to its versatile sensing capabilities, the OPB872N55TX is also a reliable device. It features a guaranteed life-time of 1 million operations and low on-state current, making it an ideal device for a wide range of applications.

In summary, the OPB872N55TX is a slot-type photointerrupter with a transistor output that is suitable for a variety of applications. It is optimized for short distance sensing and can reliably detect objects with a width of 0.8mm to 3.5mm. Furthermore, the OPB872N55TX features a guaranteed life-time of 1 million operations and low on-state current, making it a reliable and cost-effective device for sensing applications.

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