The B41605 and B41607 series were designed for applications with stringent demands for power and current carrying capacity at ambient temperatures ranging up to 150 C. Tinned copper leads of 1.2 mm diameter, also allowing determination of the poles because of the different lead length, can be either welded or soldered. To stand up to extreme demands for vibrational stability in an automobile, EPCOS developed a special process for these models, in the meantime patented, that fixes the capacitor winding so reliably by a sophisticated corrugation configuration that vibrational stability of 40 g can be specified even for these large-sized models.