Features: 1) CL21-B is non-inductively wound with metalized polyester film as the dielectric / electrode with copper-class steel leads and encapsulated in a plastic case sealed with epoxy resin 2) Box type provide the identical outer appearance 3) Wide capacitance range, small size 4) Long life due to self-healing effect 5) Suitable for blocking, by-pass and coupling of DC and single to VHF range