SF2-EH20

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Optical sensors are used in a variety of applications ranging from sensing light to serving as a position sensor in industrial automation to recognizing objects in robotics. Photointerrupters are a type of optical sensor that utilizes an infrared emitter and phototransistor detector housed in one package to detect the presence and/or absence of an object in its path. SF2-EH20 is a slot-type slot type of photointerrupter with logic output.

The SF2-EH20 has a built-in slot with a thick vertical IP65 wall, which is used to detect objects as they pass through the slot. Its height is a typical 5mm, however its width varies and can range from 1.3mm up to 7.1mm. The dimensions of the detection area can also be adjusted in very small increments, which is a great advantage for applications where precise sensing is required. The fact that the SF2-EH20 is a slot-type photointerrupter also means that it can be adapted to any kind of object passing through it.

The technical specifications of the SF2-EH20 include galvanically isolated digital output, current draw of 10mA max, supply voltage of 4.75V to 5.25V, operating temperature range of -40°C to 85°C, and a response time of 0.3ms max. Its working principle is based on the Emitter and Detector being located in the same package. When the Emitter detects an object passing through the slot, a current is interrupted, causing the Detector to detect the change and triggers the logic output.

The SF2-EH20 is ideal for applications requiring a reliable object detection system where the object is a small component or wire passing through its slot. Its small size and its adjustability make it especially suitable for applications where space restrictions apply. By combining the SF2-EH20 with an external amplifier, it can achieve detection of electron-sized objects like thin conductors. The SF2-EH20 is also widely used in factory automation, robotics, and process control due to its reliability and accuracy.

In conclusion, the SF2-EH20 photointerrupter is one of the most reliable and accurate models of its kind. Its adjustability and small size make it suitable for a variety of applications, such as factory automation, robotics, and process control. Its working principle is based on an Emitter and Detector being located in the same package, and it is triggered by the interruption of current when an object passes through its slot. The SF2-EH20 is a great solution for a reliable object detection system requiring precise sensing.

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