Up to 150 °C operating temperature at reduced voltage applied Long useful life, 2000 h at up to 140 °C Very high ripple current capability Compact design High vibration resistance Shelf life up to 15 years at storage temperatures up to 40 °C. To ensure solderability, the capacitors should be built into the application within one year of delivery. After a total of two years' storage, the operating voltage must be applied for one hour to ensure the specified leakage current. Construction Charge/di.