158 Series. Useful life of 5000h at +105 °C Miniaturized, very small dimensions High Ripple Current capability Polarized Aluminium electrolytic capacitors, non-solid electrolyte Large types, cylindrical Aluminium case, insulated with a blue sleeve Keyed polarity version available High reliability. Applications in General purpose, industrial, telecom and audio/video systems; Smoothing and filtering; Standard and Switched Mode Power Supplies; Energy storage in pulse systems