INTRODUCTION CL21X-B are non-inductively wound with metallized polyester film as dielectric/electrode with copper-clad steel leads and encapsulanted in a plastic case sealed with epoxy resin. FEATURES Boc type provides the identical outer appearance Wide capacitance range,small size,high capacitance rate 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