The BLM18HE152SN1D is a SMD Chip Ferrite Bead with 0603 case. It realizes high impedance at 1GHz and suitable for noise suppression from 500MHz to GHz range. The impedance value of HG/HD-type is about three times as large as that of A/B-type at 1GHz, though the impedance characteristic of HG/HD-type is similar to A/B-type at 100MHz or less.