The Isocom Components 2004 LTD Optoisolators - Transistor, Photovoltaic Output IS355 (IS355) is a DC input Darlington output optocoupler designed for surface mount applications. It features a 4-pin PDIP (Plastic Dual In-line Package) package and offers superior isolation, high reliability and low drive power factor. The IS355 provides reliable operation in harsh operating environments, making it an ideal choice for industrial and/or high-temperature environments. Its high dielectric strength and wide temperature range ensure durable and reliable performance. The device has high immunity to common mode transients, making it well suited for applications where electrical noise is a major concern. Additionally, the IS355 is UL and VDE approved for quality and safety. With low cost and high performance, the Isocom IS355 is the perfect solution for your industrial optocoupler needs.