OPB390L55Z

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Optical sensors are devices that utilize optical radiation to detect and measure information from its surrounding environment. Photointerrupters, a type of optical sensor, are commonly used to detect an interruption of light that passes through its slot. In Optoelectronic technology, OPB390L55Z is a miniature, low-cost photointerrupter with slot type and a transistor output.

The OPB390L55Z photointerrupter consists of an infrared light emitting diode (IRED) and a ventilated phototransistor (PhotoIC) packaged in the same small case. The device has a lead spacing of 3.2 mm between the IRED and phototransistor, and can detect objects up to 10 mm away. The package form offers unique advantages of ease of mounting and minimum space requirements.

The OPB390L55Z is well adapted for a wide range of applications, such as paper presence detection, dark/black mark detection, door interlock, packaging equipment for medical, pharmaceutical, security, office automation, telecommunications, etc. Furthermore, due to its small size, the photointerrupter can be used in areas where space is limited.

The OPB390L55Z photointerrupter works by detecting an interruption of light that passes through its slot. The light is initially transmitted from the IRED on one side of the slot, and is then intercepted by the phototransistor on the other side. When an opaque object is placed in the slot, it blocks the light, thus causing an interruption of the light. This interruption triggers an electrical signal in the phototransistor that is then outputted as an electronic switch.

The OPB390L55Z photointerrupter is typically used in a configuration according to the following diagram. The power supply (Vcc) is connected to the IRED, while theCollector is connected to the phototransistor. Finally, the Anode and Cathode are connected to the appropriate external components. The collector output is triggered when the slot is interrupted, providing a switch that is either opened or closed.

In summary, the OPB390L55Z photointerrupter is a miniature, low-cost device with slot type and a transistor output. It is well adapted for a wide range of applications such as paper presence detection, dark/black mark detection, door interlock, and packaging equipment. Its small size also means that it can be used in applications where space is limited. Its working principle is based on detecting an interruption of light that passes through its slot. When an opaque object is placed in the slot, it blocks the light, triggering the collector output and providing an electronic switch.

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