BPX 81-2/3

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Optical Sensors - Phototransistors

Phototransistors are a type of optical sensor that convert light into an electrical current. They are composed of semiconductor material and operate by combining the optical sensitivity of a photodiode with the signal amplification of a transistor. BPX 81-2/3 is a type of phototransistor produced by Broadcom, an American semiconductor subsidiary company of Avago Technologies. This phototransistor is commonly used in motion sensors, proximity detectors, and other consumer electronics.

Application Field of BPX 81-2/3

The BPX 81-2/3 is a versatile and reliable optical sensor that has a wide range of applications. This phototransistor is designed to be extremely sensitive to ambient light, making it perfect for many motion sensors and proximity detectors. It can also be used in consumer electronics such as televisions and computers, as well as automotive navigation systems and security systems. This versatility has made the BPX 81-2/3 a popular choice in many industries.

Working Principle of BPX 81-2/3

The BPX 81-2/3 operates by converting light into an electrical current. This electrical current is then amplified by a transistor, providing an increased signal level. The device contains two separate components, an N-type transistor and a P-type transistor. When light is detected, it causes the transistor\'s base-collector junction to become forward biased, creating a current flow. This current flow is then amplified by the transistor, resulting in an output voltage or current.

The BPX 81-2/3 also operates in both the visible and infrared light ranges. Its integrated optics provide an extremely high sensitivity to ambient light, as well as a low response time. This makes the device perfect for applications such as motion sensors, proximity detectors, light sensitive controls, and consumer electronics. Additionally, the BPX 81-2/3 also comes with a low leakage current and low dark current, which improves the device\'s overall performance.

Conclusion

The BPX 81-2/3 is a type of optical sensor that operates by converting light into an electrical current. This device is composed of two N-type and P-type transistors and provides an excellent sensitivity to ambient light. The BPX 81-2/3 is widely used in motion sensors, proximity detectors, and consumer electronics. Additionally, the device also offers a low leakage current and low dark current, allowing it to work effectively in both the visible and infrared light ranges. The versatile design has made the BPX 81-2/3 a reliable choice for many different applications.

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