CorporationSY6861B1ABC is a Pre-ordered Products SOT23-6 RoHS manufactured by Silergy Corporation. It is an AC/DC transformer constant voltage controller. It is designed for switch-mode power supplies that need to support AC input ranging from 90VAC to 264VAC and DC input from 6V to 33V. It can provide excellent stability at different line and load conditions, making it suitable for home appliances, such as air conditioners, refrigerators, washing machines, and lighting systems. It features a soft-start controller, programmable frequency, over temperature protection, overvoltage, and undervoltage protection. It can provide a delay of up to 470ms and is RoHS compliant.