SDP8405-001

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Optical Sensors - Phototransistors have been used in various applications for a long time, due to their ability to operate over a wide range of light and dark conditions and to detect changes in light intensity or pulses with high accuracy. The SDP8405-001 is an example of a modern phototransistor which is used in many applications.

The SDP8405-001 is a very precise, long-term-stability NPN Phototransistor with a peak wavelength of 850 nm. Its peak spectral response is at 850 nm, making it particularly well-suited for applications such as positioning and tracking of objects in controlled illumination environments. The SDP8405-001 is designed to provide fast and accurate operation even in very low light conditions.

The SDP8405-001 is an NPN phototransistor with dual collector structures, consisting of a middle-active collector and a lateral-active collector. The dual collector structure allows for much higher accuracy and stability than standard NPN phototransistors. Its peak spectral response is around 850 nm, which means it is only sensitive to light of that specific wavelength. It is designed to allow very low light conditions while still providing fast and accurate operation.

The SDP8405-001 has a wide range of applications in the fields of security, surveillance, industrial control, and automotive safety. Its robust nature, long-term stability, and wide range of light sensitivities makes it an excellent choice for applications where precision and reliability are paramount. The SDP8405-001 can be used to detect low-level light signals, such as motion, or, it can be used as a photoelectric switch. Its peak spectral response at 850 nm, combined with its dual collector structure and wide light sensitivities makes it an excellent choice for applications that require precise, reliable operation in very low light conditions.

The working principle of the SDP8405-001 is very simple. When light of the correct wavelength comes into contact with the collector, electricity is generated which flows through the base and triggers the subsequent circuit. The SDP8405-001 is designed to remain in the "on" position even when the light is not present, meaning it can be used in applications such as proximity sensing and object detection. It also provides adjustable gain control, allowing it to be optimized for different working conditions.

In summary, the SDP8405-001 is an excellent, long-term stable NPN phototransistor with a peak wavelength of 850 nm. It is designed for applications that require high accuracy, precise operation, and reliable performance in low light conditions. Its wide range of applications, high stability, and adjustable gain control make it an invaluable asset in many fields.

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