4N27S-TA

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Optoisolators are devices that use optical signals to electrically isolate two circuits, ensuring that electrical signals cannot pass between the two. The 4N27S-TA is a transistor-type optoisolator with photovoltaic output. It is popularly used in a variety of applications, from industrial systems to consumer electronic devices.

The 4N27S-TA consists of an infrared emitter diode, a phototransistor, and two additional transistors for switch control. When power is applied to the 4N27S-TA, the infrared emitters illuminate, thus creating electrical current in the phototransistor. The current then triggers the two additional transistors to act as a switch, connecting the two circuits.

The use of an optoisolator such as the 4N27S-TA can be invaluable in many industrial applications where electrical isolation between two circuits is necessary. These applications include peripheral communications, computer data control, factory automation, industrial control systems, and medical equipment. As an example, in a factory automation process, two separate systems may need to communicate with each other. The use of the 4N27S-TA ensures the electrical signals cannot pass between the two circuits.

The 4N27S-TA can also be used in consumer electronics, providing a reliable way to isolate control signals from each other. As an example, two different channels of audio signals can be isolated using the 4N27S-TA to eliminate the possibility of current loop interference. This makes it a suitable choice for stage sound systems and other sensitive electronics.

The 4N27S-TA is also features a wide operating voltage, making it applicable to many applications. It has a 6V to 20V minimum input voltage and a 0.5V to 14V minimum output voltage. Its total power consumption is only 1.5mA and it has a low operating temperature of -40℃ to +85℃.

The 4N27S-TA is a widely used optoisolator with photovoltaic output, suitable for many different applications in both industrial and consumer settings. Its many features, such as its wide operating voltage and low power consumption, make it an ideal choice for applications where electrical isolation between two circuits is necessary.

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