The SMCC-821X-01 is a SMD (Surface Mount Device) Common Mode Choke from Fastron. Supreme Components International is an authorised distributor of Fastron components, ensuring you receive genuine parts. Common mode chokes are essential for reducing common mode noise in electronic circuits. This particular choke is designed for surface mount applications, making it suitable for automated assembly processes. While detailed specifications are unavailable, common mode chokes are typically used in power supplies, data lines, and signal lines to improve signal integrity and reduce electromagnetic interference (EMI). Contact Supreme Components International for more information and to discuss your specific application requirements.