X2 155K 31.5*19.5*10.8 is a surface-mount passive component manufactured by SR Passives. It is a small, lightweight, low-profile part made from the highest quality materials. The part is designed to provide optimum performance for RF and EMI applications. It features a dielectric with a low dielectric constant, meaning it prevents the transfer of energy through the surface of the part. The part also has a low series resistance, allowing it to provide superior signal integrity. This surface-mount passive component is an excellent choice for various RF and EMI applications.