The LiteON 4N28 optocoupler provides electrical isolation between circuits using an LED and a phototransistor. With a 3kV isolation voltage, it effectively prevents high-voltage surges from damaging sensitive components. This optocoupler is suitable for various applications, including industrial control, power supplies, and telecommunications. Supreme Components International is an authorised distributor of LiteON components, ensuring you receive genuine and high-quality products. The 4N28 offers reliable performance and long-term stability, making it a dependable choice for your optoelectronic needs. Trust Supreme Components International for all your electronic component requirements.