OPB870N51

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Optical Sensors are devices used to detect the presence or absence of a light or light signal. Photointerrupters are a type of optical sensor that detects the interruption of a light beam. Slot Type photointerrupters work by detecting when a light beam is blocked by an object entering the slot. The OPB870N51 is a slot type photointerrupter with a transistor output. It is designed primarily for use as a limit switch or detectors for motor reversals.

The OPB870N51 is a 7-pin module with a slot type detector used to detect the interruption of a light beam. The device has an LED light source and a phototransistor detector located in its plastic housing, and can be powered by a voltage of 5V - 24V.

The including of the OPB870N51 features an integrated LED, which is a high-efficiency light emitting diode that produces a bright red light when a voltage is applied to it. The LED has a peak wavelength of 680 nm, which corresponds to a deep red color. This makes it easier to detect the interruption of the light beam, as it is a brighter light than most ambient lighting.

The including of the OPB870N51 also features an integrated phototransistor, which is a type of transistor that is designed to detect light. The phototransistor consists of a base, an emitter and a collector, and is used to change the current flow when light is detected. It is important to note that some phototransistors will only operate properly when the proper voltage is applied across them. The OPB870N51 operates with a 5V - 24V voltage applied across it.

The working principle of the OPB870N51 requires a light source, usually an LED, to be directed at the detector. When an object is inserted into the slot, the light is blocked and the phototransistor detects the interruption of the light beam. This causes a change in current flow and the output signal is then sent to a transistor or integrated circuit for further processing.

The OPB870N51 is mainly used as a limit switch or for motor reversals. In automatic machines, it is used to detect the presence of an object or a motor reversal, and it is also commonly used in materials handling. The OPB870N51 is also used in automotive applications such as power windows and automatic seat adjusters. It can be used in industrial automation and robotics as a proximity or position sensor.

The OPB870N51 is a reliable and cost-efficient option for applications requiring a compact and reliable slot type photointerrupter with a transistor output. Its integrated LED and phototransistor provide reliable detection of light interruptions and the device can be powered with 5V - 24V. It is mainly used as a limit switch or for motor reversals in a variety of applications such as automotive, industrial automation, and robotics.

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