HOA1873-011

Optical Sensors - Photointerrupters - Slot Type - Transistor Output

HOA1873-011 is a slot type photo interrupter that employs an optical coupled structure with a metal-oxide semiconductor transistor output. The unit consists of an LED source and a photosensor which are optically coupled and placed in an air gap so no contact is needed. The design ensures reliable and stable operation over a wide range of current conditions and over a wide temperature range providing a very long service life.

Application Field

HOA1873-011 is ideal for use in applications such as pick-and-place systems, machine tools, automotive parts handling, security systems, door and window sensors, factory automation systems, medical imaging systems, robotics, and other areas where optical feedback is needed. It also can be used in standalone or integrated optical sensing systems for communication, digital image processing, logic, and other applications.

Working Principle

The working principle of the HOA1873-011 is based on optical transmission. When light from an LED passes through the optical gap between LED and photo-transistor, photo-transistor starts to conduct and produces an output signal. The HOA1873-011 optical output is accessible through its Collector Transistor, Open Collector Output and it is isolated from the LED. HOA1873-011 has an adjustable sensitivity threshold which can be regulated by adjusting the position of the anti-reflection plate provided on the device.

The HOA1873-011 is designed to be very reliable and offers high-speed switching performance. The optical detector can detect the presence of an object as small as 0.2mm and can switch load current up to 10mA. It has a long operating life and can withstand up to 1,000,000 switching operations. It also has improved transmittance and minimised influence from ambient light. It has a low voltage drop,fast response time, and a wide operating temperature range.

Conclusion

HOA1873-011 is a slot type photo interrupter with an optical coupled structure with a metal-oxide semiconductor transistor output. It can be used in various applications where optical feedback is needed, thanks to its low voltage drop, fast response time, and wide operating temperature range. Its adjustable sensitivity threshold allows for precise detection of objects and switching of load current. Lastly, its long operating life and high reliability make it a great choice for any application.