CL21-B为无感结构，用金属化聚醋作为电介质／电极绕制而成，导线采用镀锡铜包钢线，使用环氧树脂密封在塑料壳内。塑料外壳封装，外观一致性好，容量范围宽，体积小，自愈性好，寿命长。适用于直流和VHF级信号的隔直流、旁路、偶合以及滤波、降噪、低脉动电路。
The ***all size can be compared with the stacked film capacitor good self-healing effect,high stability and reliability,low dissipation factor,***ailable for automatic radial insertion.Widely used in filter ,noise suppression and low pulse circuits.