PNZ14700R

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Optical Sensors - Phototransistors

A phototransistor is a type of transistor that is sensitive to light or other forms of electromagnetic radiation. When light is incident onto the base of a phototransistor, it will then cause the current present in the base to change. This then causes the output current to vary accordingly. Phototransistors are usually used in applications that require an input to be detected, such as an optical switch or for sensing an object in motion. Phototransistors can also be used in applications where a signal needs to be amplified.

The PNZ14700R is an NPN silicon photo transistor that is specifically designed for infrared detection. It has a high sensitivity to infrared radiation, with a response range of up to 90nm. It also has a low dark current, which allows it to have a wide dynamic range and an increased responsivity to light. In addition, the PNZ14700R has high speed performance, with a wide range of switching speeds.

The PNZ14700R is commonly used in applications such as optical switches, rotary angle sensing, light barriers, motion detection, and optical communication systems. For applications such as optical switches, the phototransistor is usually placed at the base of the switching circuit and is used to detect the presence or absence of light. The PNZ14700R can also be used for rotary angle sensing, as it is sensitive to infrared radiation which can provide a means for detecting the angle of rotation. The phototransistor is also often used in light barriers and motion detection applications, where it is used to detect objects in motion.

In addition, the PNZ14700R is used in optical communication systems as well. The phototransistor is placed at the end of an optical fiber in order to convert an optical signal into an electrical signal. This is done by using light to alter the electrical current in the transistor, which then changes the current output. This then causes an electrical signal to be generated.

The working principle of the PNZ14700R is relatively simple. When light is incident onto the base of the phototransistor, it alters the current present in the base. This, in turn, causes the output current to increase. The phototransistor is then able to detect the presence or absence of light, as well as other forms of electromagnetic radiation, in order to perform its intended function.

In conclusion, the PNZ14700R is a highly sensitive NPN silicon phototransistor that is specifically designed for infrared detection. It is commonly used for applications such as optical switches, rotary angle sensing, light barriers, motion detection, and optical communication systems. The working principle of the PNZ14700R is relatively simple, as it alters the current present in the base when light is incident onto it, causing the output current to vary accordingly.

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