第三章LC系列：三端子LCL-T型滤波器

Chapter 3 LC Series：Three-Terminal LCL-T Filter

1 设计特点Design Features

1.1 三端子LCL集成结构Three-Terminal LCL Integrated Structure

基于双磁珠中间并联一个轴向电容的紧凑型T型拓扑结构。

A compact T-type topology with an axial capacitor connected in parallel between the two magnetic beads.

1.2 T型二阶滤波器T-type second-order filter

1.3 一容锁定频率，双珠滤净杂波。One capacitor anchors the frequency, twin beads purify the ripple.

调整电容值大小，可在几十KHz~几十MHz的频率范围内实现不低于40dB的衰减值，即插入损耗IL≥40dB。

By adjusting the capacitance value, a minimum attenuation of 40 dB can be achieved within the frequency range of tens of kHz to tens of MHz, that is, the insertion loss IL ≥ 40 dB.

1.4 环氧树脂封装Epoxy resin package

2 命名方式Model Numbering

示例（Ex.)      LCL    3R3M    450    C104    K    T

①       ②          ③        ④        ⑤     ⑥

①  产品标识（LCL三端子滤波器） Product ID ( Three-Terminal LCL-T Filter)   

②  IL峰值频率点，3R3即3.3MHz.IL peak frequency point, 3M3, that is, 3.3 MHz.    

③  IL峰值,450即45dB.IL peak, 450, that is, 45dB.  

④  电容值Capacitance（pF) 

⑤  容值公差Capacitance Tolerance

⑥  包装方式packing code: T 编带包装Tape packaging，  B 散装Bulk

3 电器特性Electrical characteristics