The Isocom Components 2004 LTD 6N138SMT/R Optoisolators - Transistor, Photovoltaic Output are ideal for breaking ground loops, reducing system noise, and providing electrical isolation between circuits. This optoisolator series is one-channel and features a 0.4V phototransistor optocoupler packaged in an SMT DIP-8 size. It has a high insulation voltage rated up to 5000Vrms, and can be used in a wide variety of applications. These optoisolators provide excellent performance, reliability, and safety in industrial and commercial applications. With its compact size and quick response time, the 6N138SMT/R is perfect for those looking for an easy to install, cost-effective solution.