cbb21 capacitor features: metallized polyterester film as the medium and electrode, with flame retardant epoxy resin impregnated, the pin is tinned copper clad rigid wire, with very low dielectric absorption, low high-frequency loss and good self-healing performance. cbb21 capacitors are commonly printed with words, such as: MPP 104K 630V, which means what? MPP: Metallized polypropylene film capacitor (CBB21. 104K: 104 is the capacity, 100000PF, and K represents an error of ±10%.