HOA1879-011

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Optical Sensors - Photointerrupters - Slot Type - Transistor Output

HOA1879-011 is a slot-type optical sensor, and it is classified into optical sensors, photointerrupters, and transistor output types. It is a device that utilizes optical technology to detect various objects within a specific range. The core concept behind the HOA1879-011 is an optical signal emission and reception. It consists of a phototransistor integrated inside a small package. Thus, it is able to detect the presence of objects within the range of visual signal detection.

The application field of the HOA1879-011 is extremely wide. It is suitable for use in machines, robots, and operations that require a high degree of detection. It is used in industrial automation, optical recognition, and transportation control industries. Furthermore, it is ideal for use in switched dc motor power and fan speed control.

The working principle of HOA1879-011 can be divided into two parts. Firstly, when no object is in its detection range, photo-sensing element TX transmits signals to RX which are connected to a collectors of an internal transistor. This in turn causes the output voltage of the internal transistor to rise, so as to confirm the absence of any object. When an object is within the detection range, the photo-sensing element TX is blocked, resulting in a cut-off of the signal, and thus the voltage at RX drops and the output voltage of the internal transistor decreases.

The HOA1879-011 has several advantages over other similar sensors. Firstly, the response time of HOA1879-011 is quick and precise. It has excellent off-axis sensitivity and its signal-to-noise ratio is excellent. Inherently, it consumes low power and has very low power dissipation. Furthermore, it offers high immunity to ambient light and radiation. It offers strong linearity with great long-term stability.

HOA1879-011 is a reliable and accurately functioning opto-interrupter that is applicable in many industries such as industrial automation, optical recognition, transportation control, and switched dc motor power and fan speed control. It offers an optimal sensing solution and uses an emission and reception of an optical signal to detect and respond to objects. HOA1879-011 has many advantages including a rapid response time, low power consumption, high immunity to ambient light and radiation, and excellent linearity and long-term stability.

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