OPB666T

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Introduction:

The OPB666T is an optical sensor (or photointerrupter) belonging to the slot type photointerrupter family with a logic output. Specifically, it is a three-pin, illuminated, slot-type optical switch aimed towards low-cost, space-saving applications. It is designed to be used for detecting the presence of objects and measuring their motion in a very cost-effective and accurate way. OPB666T is capable of switching currents up to 10mA DC.

Application fields:

The OPB666T can be used in a variety of applications where it is important to accurately detect the presence of an object in an environment with a limited amount of space available. Some common application fields for the OPB666T include:

• Low-cost, space-saving applications
• Small robotics
• Motion control applications
• Position sensing
• Automotive engineering
• Industrial automation
• Medical/healthcare systems
• Security systems
• HVAC (Heating, Ventilation, and Air Conditioning)

Working principle:

The OPB666T uses an infrared light source and an optical receiver in order to detect the presence of an object. When an object passes in front of the light source, the receiver is blocked, causing a decrease in the amount of light that it receives. This change in light intensity is detected by the OPB666T, which then switches the logic output on or off, depending on the state of the optical path.

The adjustment of the switch sensitivity can be done manually, by adjusting the potentiometer, or it can also be done remotely, using a control voltage. To reduce the influence of ambient light, the OPB666T has an automatic gain control system that can be used to adjust the switch level in accordance with the amount of ambient light present.

The OPB666T has an extended operational temperature range of 0°C to 70°C. It also offers an additional option for extended temperature range (-20°C to +85°C).

Advantages:

The OPB666T offers several advantages compared to other slot-type photointerrupter products. The main advantages are listed below:

• One of the lowest power consumption levels in its class (typically 4 mW)
• Robust housing
• High operational speed (up to 1000 kHz)
• Low power consumption
• Compact size (only 21 mm in height)
• High immunity to ambient light
• Easy to use
• IP67 protection rating
• Logic level output
• 10mA maximum DC current handling capability

Conclusion:

The OPB666T is an ideal choice for low-cost, space-saving applications where an accurate and reliable detection of the presence of objects is required. It offers a very competitive cost-to-performance ratio and its wide range of features makes it a convenient choice for many applications. The OPB666T also offers robustness, low power consumption, excellent optical performance, and ease of use, making it an excellent choice for a variety of applications.

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