The SLFB21-2R450G-13TF is an EMI/RFI filter manufactured by Sunlord. It is an 0805 RoHS-compliant electronic part designed to reduce interference in electronic circuits. The filter is composed of an LC network, an RC network, and two common-mode chokes. The inductance of the RC network is 2R450G, while the impedance of the LC network is 13TF. This filter helps to reduce both common-mode and differential-mode interference signals, ensuring that your circuit functions properly.