B43255 Aluminum Electrolytic Snap-in Capacitors EPCOS B43255 Aluminum Electrolytic Snap-in Capacitors are composed of fully insulated aluminum cases with safety vents, snap-in solder pins to secure to the PC-board, and a minus pole marking on the insulating sleeve. Load lives in the EPCOS Snap-in Capacitor family vary from 2000h at +85°C to 3000h at +105°C. Applications include switch-mode and professional power supplies in industrial and entertainment electronics.