LTH-309-08

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Optical Sensors - Photointerrupters - Slot Type - Transistor Output

The LTH-309-08 is a slot type optical sensor with a transistor output. It is designed to switch on when the light inside the enclosed slot is disrupted or interrupted by a passing object. The combination of an embedded LED emitter and phototransistor receiver makes the LTH-309-08 an effective, energy efficient sensor for many applications.

Features and Benefits

The advantages of using the LTH-309-08 in an electronic system include:

• Low cost
• High reliability
• Simple installation
• Compact size that integrates easily into tight spaces
• High speed response
• Long detection range
• Low power consumption
• Insensitive to dust and dirt

Applications

The values of compact size, cost and reliability have positioned the LTH-309-08 optical sensor as the go-to choice for many applications, including:

• Measuring machine tool lathe and drill positions
• Position control of conveyor belts and robotics
• Edge and surface detection of mass production items
• Traffic and pedestrian sensor in automatic gates
• Safety monitoring in hazardous environment
• Counting bottle caps, solder joints or printed circuit boards
• Precision machining, welding and dispense control
• Automated sorting and post processing of components
• Objects recognition in a video image processing

Working Principle

The LTH-309-08 slot type optical sensor is composed of a visible light LED emitter and photo transistor integrated in a single package. When a light interrupting object passes through the enclosed slot, the detector is activated and interrupts the LED light beam, thus switching the output to a lower valued state. Once the object has passed through, the LED beam is restored and the output returns to its original level. The whole process is completed in a fraction of a second and is controlled by the shape, size and speed of the detected object.

The LTH-309-08 optical sensor is designed to detect small, short objects that pass through the slot in a fraction of a second. As the detection range can be adjusted over a wide range, this sensor is an ideal solution for controlling fast action switches, conveyor belts and robotic arms.

Conclusion

The LTH-309-08 slot type optical sensor is a reliable and cost effective solution for a wide range of demanding application areas. With its small form factor, high speed response and low power consumption, the LTH-309-08 sensor is an efficient device for detecting small objects with high accuracy and reliability.

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