HMHA2801BR4V

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Optoisolators are electronic components used to isolate electrical circuits from each other. The HMHA2801BR4V belongs to Optoisolators - Transistor, Photovoltaic Output. It was developed by Hirose Electric Co., Ltd.

The HMHA2801BR4V is a 5V logic compatible optocoupler composed of an infrared LED and a NPN silicon phototransistor. Its extremely low coupler operating voltage and low input current contribute to its low power dissipation. It also has an isolation voltage of 3750Vrms and a high temperature resistance of up to 155°C.

The primary application fields of the HMHA2801BR4V varies from communication systems like fax machines, modems and terminal equipment to motor control, office automation and domestic appliances. It also operates in printers, electronic cash registers, robots and other industries.

The HMHA2801BR4V works on the principle of photoelectric effect. Electromagnetic radiation from the LED causes the semiconductor to become conductive, and the output signal is applied across the transistor. The output voltage is limited, and the amount of current flowing through the transistor is controlled. In this way, the input signal is protected from the output circuit.

The HMHA2801BR4V offers high accuracy, high speed response, and low power consumption. It can effectively protect against voltage and current transients, and it is highly reliable due to its insulation resistance and breakdown voltage. Additionally, it has an extremely small form factor and is easy to mount.

The HMHA2801BR4V is also widely used in the automotive and industrial sectors due to its ability to provide isolation between two electrically separate circuits. This eliminates the possibility of false switching or malfunction caused by electrical noise.

In summary, the HMHA2801BR4V is an optocoupler intended for low power applications, and is ideal for communication systems, motor control, office automation, domestic appliances, electronic cash registers, robots and the automotive and industrial sectors. It offers high accuracy, high speed response, low power consumption, and excellent insulation, as well as a very small form factor.

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