The FF series capacitors range from smaller through-hole PCB mount types, to cylindrical, terminal mount parts (to attach to bus bar) and very large cased parts. All standard sized parts operate to 105oC max, and all feature a controlled self healing design. This has been used for many years and uses a segmented electrode design to provide a long lifetime and fail-safe operation. Qualifications include: IEC 61071-1, -2, 60068-1, 60077, 60384-2, 61881, 61373, UL 94, and NFF 16-101, 102.