BLM18EG221TZ1滤波器的铁氧体磁珠芯片规格书PDF中文资料

BLM18EG221TZ1属于滤波器的铁氧体磁珠芯片。由村田制作所制造生产的BLM18EG221TZ1铁氧体磁珠和芯片铁氧体磁芯是旨在防止高频噪声或 EMI（电磁干扰）的设备。这些铁氧体磁芯用于放置在电路内。关键特征包括滤波器类型（差分、信号或电源）、线路数、最大额定电流、阻抗和指定频率，以及安装类型（自由悬挂、表面贴装或通孔）。

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.