CBB21 capacitor is also called CBB22 capacitor, and now most manufacturers are changed to CBB22 capacitor, because CBB21 belongs to the name of ten years ago, it has now been eliminated, and it is basically called CBB22 capacitor, but whether it is printed CBB21 or CBB22 on the market now, there is no difference in their core raw materials, There is no difference in function.
The full name of CBB21 capacitor is metallized polypropylene film capacitor, also known as MPP capacitor, which is made of metallized polypropylene film