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日本村田制作有限公司最近推出了4种与DC电源一起使用的表面安装抗电磁干扰滤波器。据说这些产品有助于减小笔记本式个人计算机和其它便携式信息产品的尺寸和重量。 NFM41P和NFM46P为片式抗电磁干扰滤波器,它们将3引出端电容器用作基本元件,具有大电流额定值。这些滤波器可有效地消除宽频范围内的噪声。与BLM41P系列的表面安装固体电感器相结合时,消噪声效应会进一步增强。 3引出端电容器的使用,使产品有效地消除几百兆赫的频率。NFM41P的额定电流为2A,
Murata Manufacturing Co., Ltd. of Japan recently introduced four kinds of surface mount anti-EMI filters used with DC power supplies. These products are said to help reduce the size and weight of notebook personal computers and other portable information products. The NFM41P and NFM46P are chip anti-EMI filters that use a 3-lead capacitor as a base component and have a high current rating. These filters effectively eliminate noise over a wide range of frequencies. Combined with the BLM41P family of surface-mount solid-state inductors, the noise cancellation effect is further enhanced. The use of 3-lead capacitors allows the product to effectively eliminate frequencies of several hundred megahertz. NFM41P rated current of 2A,