BLM18EG221TN1D滤波器的铁氧体磁珠芯片规格书PDF中文资料

BLM18EG221TN1D属于滤波器的铁氧体磁珠芯片。由村田制作所制造生产的BLM18EG221TN1D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.

Features (BLM18E series)

1. Low DC Resistance and a large Rated Current are

suitable for noise suppression of the driver circuit.

2. Excellent direct current characteristics

3. Thin type (t=0.5mm) is suitable for small and low

profile equipment such as DSC, cellular phones.