The Ferrocore HCI1890-1R3 is a large-core high-performance ferrite common mode choke designed for use in high-frequency power applications. It offers superior EMI filtering performance, due to its high inductance, wide bandwidth, and low loss characteristics. Its advantages include small size, high current handling capability, and low RFI noise emissions as well as high creepage capability. This part is especially suitable for applications such as PFC power controllers, telecom, and Ethernet Ethernet transceivers.