Are non-inductively wound with metallized polyester film as the dielectric/electrode with copper-clad steel leads and encapsulated in a plastec case sealed with epoxy resin.

• 为无感结构，用金属化聚丙烯薄膜作为电介质／电极绕制而成，导线采用镀锡铜包钢丝，使用环氧树脂密封在塑米壳内。