OPB819

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

OPB819 Application Field and Working Principle

Optical sensors are devices used to detect the presence of an object by using its optical properties. Photointerrupters, or slot type optical sensors, are particular types of optical sensors used to detect when an object interrupts a light beam. The OPB819 is a photointerrupter with a transistor output, typically used in applications that require a single LED source and receiver.

The OPB819 consists of a slotted optical detector and infrared light emitting diode (LED). The OPB819 features a high speed response time of 0.1 ms and a wide operating current ranging from 10 mA to 150 mA, making it suitable for various applications requiring a high response. The slim profile of the OPB819 also allows for less space on a printed circuit board (PCB).

The OPB819 works by emitting a beam of infrared light from its IR LED source, which is detected by its optical detector. When an object interrupts the light beam, the output voltage of the OPB819 drops. The output voltage can either be a TTL voltage, which would typically be 0V or 5V, or a CMOS voltage, which would typically be 0V or 3.3V. The output voltage can be adjusted via the resistor divider network connected to the OBT terminal of the OPB819.

The OPB819 is typically used in the following type of applications: medical appliances, office automation equipment, manufacturing equipment, and electronic games. The OPB819 can also be implemented in safety interlock systems or to detect the presence or absence of objects, and to control the speed of rotating objects. In these cases, the presence of an object interrupting the light beam acts as a signal for the OPB819 to switch states. This is possible due to the fast response time of the OPB819, which enables the device to detect the interruption of the light beam as soon as it happens.

In summary, the OPB819 is a high speed transistor output slot type photointerrupter sensor used to detect the presence of an object interrupting a light beam. With its slim profile and high response time, it is suitable for a wide variety of applications ranging from medical appliances and office automation to safety interlock systems.

The specific data is subject to PDF, and the above content is for reference