OP573

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Optical Sensors - Phototransistors are devices which measure light intensity and convert it into a usable electrical signal. The OP573 is a widely used general-purpose phototransistor. It is a bipolar transistor with a light-sensitive base layer. The OP573 application field and working principle are described in this article.

The OP573 phototransistor is ideal for applications such as infrared sensor applications, optical media access control, motion sensing, and environmental monitoring. It is capable of sensing wavelengths from 600nm to 1000nm, making it ideal for a wide range of applications.

The OP573 has an active collector region, which enables it to produce an electrical signal in response to incident infrared light. This signal is then amplified to provide a usable output. The versatility of the OP573 makes it suitable for a variety of applications.

In operation, the active collector region of the OP573 is exposed to an infrared light source. This light interacts with the base of the phototransistor, creating an increased charge at the base. This in turn causes an increased current flow between the collector and emitter regions of the transistor. This increased current flow is amplified to create an electrical signal, which can be used for measurement or control purposes.

The OP573 is also sensitive to a wide range of light intensities. It is capable of responding to even low levels of infrared radiation and can measure light intensity in an area as low as 1 Lux. This makes the OP573 highly suitable for a number of different applications requiring accurate light measurements.

The OP573 phototransistor also has a wide range of features which allow it to be used in a variety of applications. It has a fast response time, allowing it to detect rapid changes in light intensity. It also has low power consumption, making it suitable for applications where energy efficiency is important. Finally, it also has an illuminated barrier, which helps to protect the sensor from the damaging effects of direct sunlight.

In summary, the OP573 phototransistor is a versatile device which can be used for a variety of applications. It is capable of responding to a wide range of light intensities and can measure light intensity in an area as low as 1 Lux. It has a fast response time, low power consumption, and an illuminated barrier to protect the sensor from the damaging effects of direct sunlight. This makes the OP573 very suitable for a variety of applications.

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