OPB390P51

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The OPB390P51 is a slot type photointerrupter with transistor output, which means it has two states: either the beam of light is interrupted or it is not, depending on the position of the slot blocking it. The OPB390P51 senses when a slot interrupts the transmitted light beam and switches from the OFF to the ON state. This type of photointerrupter uses light to detect the presence of an object. It can be used for a variety of applications and is essentially composed of an infrared light source and a phototransistor. It works by having an infrared light beam pass through a gap or slot in the device. When the beam is broken or interrupted by an object, the photointerrupter outputs a signal.

The OPB390P51 is a widely used, compact size optical switch with a wide detection range. It is ideal for applications requiring a reliable, economical sensor. This type of photointerrupter can be used in a variety of sensing applications, including barrier detection, presence detection, object counting, and motion detection. Additionally, this device is well suited for applications requiring an output signal when a threshold value is crossed. It is suitable for use in computer peripheral, office automation, automotive, and industrial applications.

When using the OPB390P51 device, the configuration can be set to either an active-high or an active-low. In the active-high configuration, the output is normally off, and when the light beam is interrupted, the output is switched on. Conversely, in the active-low configuration, the output is normally on, and when the light beam is interrupted, the output is switched off. This type of photointerrupter is capable of sensing objects up to 3 mm in size and its detection range is up to 5 mm. The OPB390P51 is designed to be extremely reliable and offers superior noise suppression over other types of sensors.

In terms of working principle, the OPB390P51 is a type of optical sensor that is used to detect the presence of an object. It works by combining an infrared LED (light-emitting diode) with a phototransistor. When the transmitted light beam is interrupted, the transistor turns on and a low signal is output. The current flowing through the transistor triggers an electrical circuit and a high signal is generated.

In terms of application field, the OPB390P51 can be used in a variety of sensing applications, including barrier detection, presence detection, object counting, and motion detection. Additionally, this device is well suited for applications requiring an output signal when a threshold value is crossed. Some of the most popular applications of the photointerrupter are for appliance and home automation, office automation, gaming, and industrial control systems.

The OPB390P51 is an economical and reliable photointerrupter, specifically designed for use in a variety of applications. Its simple construction, high sensitivity, fast response time, and long life make it an excellent choice for many sensing applications. Its detection range and reliability make it especially well-suited for detection and motion control applications.

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