SDP8475-201

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Optical sensors are widely used in the industrial and commercial fields, for example in security systems and medical instruments. Among them, Phototransistors are one of the most popular optical sensors, providing a wide range of applications and working principles. The SDP8475-201 is a typical representative of the phototransistor family.

SDP8475-201 is an NPN phototransistor with a surface-mountable package. It has an active area size of 5mm2, a high reliability of 20 VDC and a high rise current of 1.5A, which is one of the highest in the phototransistor family. With its wide active area, it is suitable for large-scale signals and extends the range of applications. In addition, the SDP8475-201 features a high isolation voltage of 1500Vrms and an adjustable internal sensitivity. This gives it the ability to detect weak signals even in noisy environments.

SDP8475-201\'s working principle is based on the light-induced current that is generated when a photoconductor material is exposed to light. As the intensity of the light increases, the number of electrons in the photoconductor material increases, resulting in a higher electrical current. The SDP8475-201 takes this principle, and uses it to produce an electrical current signal that can be measured by a device. The amount of current is regulated by an internal feedback mechanism, thus allowing the sensor to respond accurately to different levels of light.

SDP8475-201 is mainly used in industrial applications, such as flow rate and pressure sensors, as well as in consumer and commercial electronic products. For example, it is used in the LED lights of automobiles, in medical sensors, and in optical switches. As it is capable of detecting very weak signals, it is also used in the security systems of office buildings to detect any changes in light levels and alert the security personnel.

SDP8475-201 is an excellent choice for applications that require high sensitivity and reliability. As it is a surface-mountable device, it is quick and easy to install, saving time and money. Furthermore, its adjustable sensitivity and robust package make it suitable for a range of applications in both industrial and consumer products.

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