WFM180-120N321

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Optical sensors are electronic devices that measure light energy in various forms, such as infrared (IR), visible, ultraviolet (UV), or x-ray. Photointerrupters, which are type of optical sensing device, are used to detect when an object or beam of light is obscured in a mechanical system. A slot type photointerrupter such as the WFM180-120N321 is a particular type of photointerrupter that detects changes in the level of light that passes through its slot-shaped sensing area. The WFM180-120N321 is a transistor output type of slot type photointerrupter.The WFM180-120N321 photointerrupter is a digital optoelectronic sensor meant for applications such as printed circuit board (PCB) detection, positioning, and counter-counting. It is also suited for use in consumer electronics, industrial, and automotive systems.The WFM180-120N321 works by using an optical method to count the number of slits or slots that are passed across its input slot and then transmitting that information as a digital signal to a circuit. The device consists of a light-emitting diode (LED) and a phototransistor that are separated by a gap, which is the slot or slit. This gap can be either fixed or variable in size. When an object or beam of light passes through the gap, the light-emitting diode is activated and the phototransistor receives a signal that is sent to an output circuit.The WFM180-120N321 has a variety of features that are designed to make it suitable for a wide range of applications. It has a wide operating voltage range from 4 V to 24 V and an output current of up to 50 mA. It is also available in a variety of packages including DIP, SMD, and SSOP, making it easy to install.The WFM180-120N321 also comes with protection circuits such as reverse polarity, over current, and under voltage, making it safe to use in all types of conditions. Additionally, this photointerrupter can also detect low light intensity, making it highly sensitive and accurate in detection.Overall, the WFM180-120N321 is an ideal choice for applications that require light sensing and detection. With its wide operating voltage range and protection circuits, it is well suited for use in harsh operating conditions. Furthermore, its small form factor, easy installation, and superior reliability make it the perfect choice for applications requiring accurate, reliable, and high-speed light detection.

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