PC123B

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Optoisolators are optoelectronic devices with which electrical isolation between input and output is achieved. They are used to isolate one circuit from another isolated circuit, or to isolate an operational area from a higher or lower voltage area. One typical example is using an optoisolator to electrically isolate the low voltage area of a motor from the higher voltage part of the power system.The PC123B is a transistor-type optoisolator which has a photovoltaic output. It contains an infrared LED as the input and a photoreceptor (a common-emitter phototransistor) as the output device. The PC123B is designed for switching applications in telecommunications, industrial and consumer automation applications, as well as for data isolation and data transmission. The operating principle of the PC123B is similar to that of an ordinary transistor. The phototransistor base is held high by a positive current source, which is connected to the emitter. This makes the transistor base-emitter junction forward biased. The phototransistor is kept in the "on" position by passing light through the optical cavities in the PC123B.When a signal is applied to the infrared LED of the PC123B, the LED creates a semi-conducting light beam which is fed through the optical cavities in the PC123B. When the LED\'s light current is sufficient, it produces enough current to turn on the phototransistor, which then allows the signal to be passed through.The PC123B has several advantages over other optoisolators. It has a faster switching time due to its ability to rapidly transfer higher currents at lower voltages. It also has good temperature stability, so it can be used in a variety of environments without fear of damage due to temperature fluctuations. Additionally, the PC123B has a low power consumption, so it can be used in applications such as computers and home appliances which require low-power operation.Finally, the PC123B is relatively inexpensive and offers excellent performance. It is also very rugged and durable, making it an excellent choice for applications which require a reliable optoisolator. The PC123B is a great choice for any application which requires electrical isolation between two electrical systems, and its easy to use features make it an ideal choice for designers who require a cost-effective, reliable optoisolator.

The specific data is subject to PDF, and the above content is for reference