OPB420AZ

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The OPB420AZ series of optical sensors, which belong to the slot type of photointerrupters with transistor output, are used in a variety of applications. These sensors are composed of an infrared emitting diode and an NPN silicon phototransistor, both molded into a single black-tinted and integrated package. The physical configuration and internal circuitry are designed to provide a high degree of reliability and flexibility for various applications.

The main application field of OPB420AZ sensor includes automatic door openers, motion detectors, level detectors, material handling, robotics, distance sensing, and other automated manufacturing equipment. Generally speaking, it can detect presence of an object in its field of view, provide position feedback, detect rotation, detect direction, or detect the arrival of material in a transport mechanism.

The OPB420AZ sensor works by using an infrared LED to project a light beam to the phototransistor. When an object passes through the receiver’s sensing area, the object interrupts the light beam which then causes the phototransistor to be switched off. As a result, the transistor’s collector current drops, which in turn causes the collector voltage to switch low, and the sensor output switches from ‘high’ to ‘low’. The device then sends a signal to the system control to indicate that an object has been sensed.

The OPB420AZ is designed to be easy to mount in a variety of applications thanks to its small form factor and integrated package. It is also designed to have superior durability due to its high-quality materials and the use of optical isolation techniques. This optical isolation helps protect the system from external electromagnetic interference which may affect the performance and accuracy of the sensor.

The OPB420AZ offers excellent performance characteristics for applications requiring reliable and accurate sensing. It features ultra-low current consumption, a fast response time, and high sensitivity, all of which improve its performance. Additionally, the optic power of this device is able to reach 0.5m and its operating temperature range is within -25°C to 70°C. This makes the sensor suitable for a wide range of applications.

In summary, the OPB420AZ series of optical sensors is an excellent choice for applications in which accurate and reliable sensing is required. Its small form factor, ultra-low current consumption, fast response time, and high sensitivity make it an ideal solution for a variety of applications ranging from automatic door openers to level detectors, distance sensing, and material handling. With its superior durability and excellent performance characteristics, this sensor can help provide reliable and accurate sensing needs in any application.

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