CL20 are non-inductively wound with metallized polyester film as the dielectric/electrode and copper-clsd steel leads and outer wrapping of polyester end sealed with epoxy resin.

• CL20为无感结构，用金属化聚酯薄膜为电介质／电极绕制而成，导线采用镀锡铜包钢线或铜线，外层采用聚酯胶带包裹，两端用环氧树脂密封。