BPX 38-2/3

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Optical sensors are devices designed to detect light or other forms of radiation. A phototransistor is one of the most common types of photodetectors used in optoelectronic applications. The BPX 38-2/3 is a type of NPN phototransistor designed for use in a variety of applications.

The BPX 38-2/3 is a high-speed, radiation-resistant phototransistor with an emitter-base breakdown voltage of -3V. It has a low saturation voltage and a wide switching range, making it ideal for applications where a high current is required but a low voltage is necessary. The BPX 38-2/3 is designed for use in applications that require linearity, such as ambient light and proximity sensing. The device is a compact package with a diameter of 8 mm and a height of 3.8 mm, making it ideal for space-constrained applications.

The working principle of the BPX 38-2/3 is based on the concept of the photon-electron conversion. Photons are absorbed by the emitter, and electrons are released as a result. These electrons are then transported to the base, which serves as the collector. The current flowing through the device is determined by the intensity of the radiation and the phototransistor\'s internal resistance.

The BPX 38-2/3 is designed for a variety of applications including light, proximity, and temperature sensing. It can be used in lighting control systems to detect ambient light levels, which can then be used to adjust the brightness of the lights. In medical applications, the BPX 38-2/3 can be used to provide a real-time measure of the temperature of fluids or gases. The BPX 38-2/3 can also be used in security applications to detect motion and provide an alarm when movement is detected. Finally, the device is also suitable for use in proximity sensing systems, such as door entry systems and car keyless entry systems.

In conclusion, the BPX 38-2/3 is a phototransistor designed for use in a variety of optoelectronic applications. It is radiation-resistant and has a low saturation voltage and a wide switching range, making it ideal for applications where a high current is required but a low voltage is necessary. The device is suited for such applications as lighting, temperature, and proximity sensing.

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