HOA6985-T51

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Optical Sensors are devices used to detect the presence of something or recognize a certain property that is often material or, more specifically, light. Photointerrupters, as a subset of optical sensors, detect the interruption in a beam of light across a gap. This is done using a receiver and an emitter that are both aligned in a straight line. When the break in the light is detected, the corresponding logic output is triggered. The HOA6985-T51 is a specific type of photointerrupter that is designed for a slot type application.

The HOA6985-T51 is a slotted type logic output photointerrupter typically used for the sensing of objects that pass through it. The unit includes an infrared emitter which consists of an emitter lens and an LED that projects a light source with a specific wavelength. When the object passes through the opening of the slot, the emitter lens shuts off the light, and the light, no longer being visible, is detected by the receiver and a logic output is triggered.

The HOA6985-T51 can be used for a variety of applications that require a gap detection method. Examples include presence detection, position sensing, edge detection, or motion sensing. It can be used in industrial automation, medical automation, household appliances, and robotics. The HOA6985-T51 is designed with a high level of packing density and space saving in mind, making it ideal for use in today’s increasingly compact systems.

The HOA6985-T51 is specifically designed for small to medium range range applications, with its detection distance varying between 1mm and 8mm. It is a slotted design meaning that it requires only an opening in the slot that is 3mm wide and 0.5mm deep. The electronic component is outfitted with a variety of protective features including reverse polarity protection, reverse current protection, load protection, and insulation. In addition, the HOA6985-T51 is supplied with an operating voltage of 5V DC and is capable of operating from -20°C to 80°C temperatures.

The HOA6985-T51 is a type of “low-cost” photointerrupter that is simple to use and requires no additional power or signal circuitry and provides a reliable electrical output. It consists of four pins that connect to a logic driver. An input is connected to the anode of the LED, and the cathode of the LED is connected to an output. The remaining two pins are for ground and Vcc, the logic voltage source. When the light beam is interrupted, the open collector output is pulled low, indicating the detection error. Additionally, the output offers a quick response time (2µs max) and infinite electrical isolation between input and output Voltages.

The HOA6985-T51 can be used for a variety of applications, including motion sensing, position sensing, presence detection, and edge detection. Its small form factor and low cost make it an ideal choice for those looking to add an additional layer of safety or control to their systems. The unit can detect objects from as close as 1mm, allowing for precise position sensing, and provides a reliable electrical output, ensuring accuracy and consistency.

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