1. BLM18H series realizes high impedance at 1GHz and

is 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.

2. HG-type is effective in noise suppression in wide

frequency range (several MHz to several GHz).

HB/HD-type for high-speed signal line provides a

sharper roll-off after the cut-off frequency.

HK-type for digital interface and HE-type for

optical pickup modules are effective in suppressing

the ringing because resistance especially grows in the lower frequency.

3. The magnetic shielded structure minimizes crosstalk.