SF4-AH48-H

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Optical sensors are one of the most widespread type of sensors used today, from simple photoresistors to modern infrared scanners. One of the simplest type of an optical sensor is the slot type photointerrupter, which utilizes the interruption of an LED\'s light beam to detect an object passing through a slot in the sensor\'s housing. A good example of such a device is Omron\'s SF4-AH48-H slot type photointerrupter, which can be used to detect objects with a high degree of accuracy.

The SF4-AH48-H is a three-pin, logic output type slot type photointerrupter, suitable for use with both AC and DC circuits. Its operating voltage and current range from 4.5V to 24V and from 10mA to 30mA respectively, and its maximum operating frequency is 100kHz. Additionally, the device is equipped with a built-in Zener diode which ensures a stable operation and further improves the device\'s accuracy.

The SF4-AH48-H device has a variety of applications, including automotive, security and production automation. Its primary use is for detecting objects or targets passing through a slot in its housing, with a detection range between 4mm and 10mm. It is also capable of various form of sensing, such as detection of a large or small area, linear detection sensing and angular sensing. The device serves as an ideal replacement to traditional mechanical switches and can detect objects with a high degree of accuracy, even at higher speeds.

The SF4-AH48-H works on a very simple principle. The device consists of an infrared LED and a pair of photodetectors, which detect the presence of an object by detecting the interruption of the LED’s light beam. When an object passes through the slot in its housing, the LED’s infrared beam is interrupted, switching the photointerrupter\'s state from "ON" to "OFF" and sending the corresponding logic output signal. When the object leaves the slot, the infrared beam is no longer interrupted, and the photointerrupter switches "OFF" to "ON", again sending out the corresponding logic output signal.

The Omron SF4-AH48-H slot type photointerrupter is an ideal sensor for numerous applications due to its simple construction, high accuracy and reliable performance. The device works on a straightforward principle, and its rugged construction allows it to perform reliably in a variety of environments, including in vehicles and industrial facilities. Its simple logic output makes it suitable for use with automated or computerized systems, and its low current and voltage requirements make it a cost-effective alternative to other sensors.

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