OPB490P11Z

Optical Sensors - Photointerrupters - Slot Type - Logic Output

The OPB490P11Z is a slot-type photointerrupter device that has logic output. It is a highly reliable, general purpose optical sensor offering low current consumption and low electrical noise interference. The device is comprised of an infrared LED emitter and an NPN transistor detector, providing an on/off, digital output. It has the ability to detect objects from 0.063 mm to 18 mm depending on the infrared LED employed.

Features

• Compact design
• Detection of objects from 0.063 mm to 18 mm
• Compatible with high-speed switching capabilities
• High sensitivity
• Resistant to dust and scratches
• Low current consumption
• Industry-standard 3-pin SIP package
• High noise immunity

Applications

The OPB490P11Z is suitable for a wide range of applications, including machine vision, security and access control, motion control, and other sensing and automation applications. It can be used to detect the presence of an object, its size, shape, alignment, and position. The device is used for counting objects, detecting breakage or loss, detecting objects of different sizes, and as a security feature for authentication.

Working Principle

The OPB490P11Z consists of an infrared LED emitter and an NPN transistor detector in a package. As light from the LED is reflected off an object, some of the light is reflected into the detector. This causes a voltage to be applied to the detector\'s base, which switches the device on, providing a logic output. When no light is detected, the device is turned off and the output remains low. The switch can be used in both the NC (Normally Closed) and NO (Normally Open) configurations.

Conclusion

The OPB490P11Z is an ideal solution for many object and motion sensing applications. With its high sensitivity and noise immunity, it is well-suited for use in a wide variety of industrial and consumer applications. Its compact size, low power consumption, and easy to use 3-pin SIP package make it an attractive option for designers looking for a reliable, cost-effective sensing solution.