OPB820

OPB820 is a slot type photointerrupter that provides transistor output (NPN/PNP). The OPB820 consists of an infrared light emitting diode (LED) that emits and then detects infrared light in transmitted mode optical sensing. OPB820 optically detects slotted tape, card edge, tracks and other slot type objects up to 6 mm wide.

Photointerrupters are typically used in applications that require precise detection of movement, presence, or absence of an object. Compared to mechanical switches, these optical devices offer greater durability and accuracy in a small and highly cost effective package.

The OPB820 has a high sensitivity, fast response time, and good electromagnetic noise immunity. The IR emitter has a sharp cutoff angle that helps reduce any false triggers that can occur when an object passes too close to the sensor. The OPB820 also offers dual output logic levels providing a logic level indication. The optical slots that are detected by the OPB820 can either be opaque or transparent.

The OPB820 consists of an infrared LED and two photodetectors. The LED is placed between the two photodetectors. When a slot of an object is detected, infrared light—emitted from the LED—is reflected off the slot and detected by the two photodetectors, resulting in a small electrical change. This change is then detected by the OPB820, which then sends an electronic signal in the form of a logic level change.

This signal can be used to control other electronic devices, such as motors, timers, switches, and other such items. The OPB820 offers a wide range of applications in industries including manufacturing, automotive, printing, medical, transportation, and many other industries.

The OPB820 offers several advantages over traditional mechanical switches. It is more reliable, more accurate, and has a much longer life. The OPB820 also offers significant cost savings over other methods of sensing. Additionally, the OPB820 is extremely small, allowing it to be used in applications that require a very small device.

The OPB820 is also very easy to use. It is designed to be used in a variety of applications, and its setup is very simple. It is also compatible with a variety of different logic levels, making it suitable for most applications.

The OPB820 is a great choice for applications that require accuracy and reliability. It is a highly cost-effective solution, and provides excellent performance in a variety of applications.