CL20为无感结构，用金属化聚醋膜作电介质／电极绕制而成，导线采用镀锡铜包钢线，外层用聚醋胶带包裹．两端用环氧树脂密封。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、祸合以及滤波、降噪、低脉冲电路。
CL20 are non-inductively wound with metallized polyester film as dielectric/electrode and copper-clad steel leads and outer wrapping of polyester end sealed with epoxy resin. Wide capacitance range,***all size .long life due to self-healing effect. Suitable for blocking ,by-pass and coupling of DC and signals to VHF range.Widely used in filter ,noise suppression and low pulse Circuits.