OPB375L55

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OPB375L55 Optical Sensors – Photointerrupters – Slot Type – Transistor Output

The OPB375L55 is an optical sensor from the OPB375Lxx family of motion sensor modules. This module is built with photointerrupters, a type of optical interrupt technology, using transistors and optical emitters to detect movement and send out a signal. The module is used mainly in factory automation, or as a motion sensor in robotics applications.

The OPB375L55 module has two sets of photointerrupters (sometimes called slotted interrupters). The first is a pair of two-pin Amplifier Photoelectric Sensor (APS), which use an infrared emitting diode and a phototransistor detector to detect movement. The second is a pair of four-pin Transistor Output Photoelectric Sensor (TOPS), which use a phototransistor detector and an output transistor for faster response time and higher accuracy. Both types of photointerrupters are used to detect movement and generate a signal to control the automation or robotics system.

The output transistor of the TOPS photointerrupters is typically an NPN transitor, providing open collector output. This open-collector output can be either high or low depending on whether light is detected by the photointerrupter. Furthermore, the TOPS phototransistor detectors can be wired either as Common Emitter (CE) or Common Collector (CC) outputs. Therefore the OPB375L55 module can be wired for both unipolar (clean logic switching) and bipolar (fuzzy logic switching) operation.

The output of the TOPS photointerrupters is designed to have an operating voltage range of anywhere from 1.8V to 5.5V, making it ideal for applications with power supply constraints. Furthermore, the output transistor of the TOPS photointerrupters has a maximum current output of 1.2mA, making it suitable for applications where low power consumption is desired. This low power consumption makes the OPB375L55 module a great choice for battery-operated and low-power applications.

One of the great features of the OPB375L55 module is that it can be used in a variety of environments. It has a wide temperature operating range (-25°C to +85°C) and its IP67 rating means that it can be safely used outdoors without the worry of damage from elements. The module also has a strong ESD protection rating, making it a great choice for applications exposed to high levels of electrostatic discharge.

Due to its low-power and wide temperature range, the OPB375L55 module is an excellent choice for factory automation or robotics applications. The module can be used to detect movement and provide a signal to control a variety of automation processes. The module is also a great choice for outdoor applications, due to its IP67 rating and strong ESD protection.

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