OPB120A

The OPB120A is an optical slot type sensor with a logic output signal. It is designed to detect the presence of an object passing through its optical sensing slot at a rate of up to 30kHz. The OPB120A has a 2mm wide sensing slot and is capable of sensing an object up to 8mm wide with its built-in emitter/receiver channels. By combining the phototransistor output and a complementary signal, the OPB120A provides a reliable and accurate output signal.

The OPB120A works by using a light source, usually an LED to send light through the sensing slot and onto the phototransistor output mounted on the back of the optical sensor. When an object passes through the optical slot, it interrupts the light signal, and the phototransistor output is switched. This output can then be used to signal the presence of an object, or be used as a trigger for an electrical or electronic action.

The OPB120A is well-suited to a variety of industrial applications, such as factory automation and machine control systems, as well as in medical equipment, appliance control, or light curtains. The OPB120A is simple to install and provides reliable operation even in harsh industrial environments. In addition, it is highly resistant to electromagnetic interference, making it suitable for industrial applications where this is a risk.

Another advantage of the OPB120A is its low power consumption; it can be powered by a DC voltage of between 4V and 24V, with a maximum current draw of 20mA. This is far less power than is required for most mechanical sensors, making it much more cost-effective and energy-efficient for industrial applications.

The OPB120A is also extremely sensitive and reliable. The phototransistor channel and common signal buffer produce precise, high-speed, and robust switching signals even at very low light levels. This makes it suitable for applications that require precise and repeatable detection of objects.

The OPB120A is also highly resistant to dirt and debris, meaning it can be used in dusty and dirty areas. It is also resistant to vibration and shocks, making it ideal for use in areas with high levels of motion or vibration.

Overall, the OPB120A offers a reliable and cost-effective solution for optical sensing applications in both industrial and medical environments. Its combination of solid construction, low power consumption, sensitivity to even low light levels, and resistance to dirt, shock, and vibration make it an ideal choice for a number of applications.