DIN 45910-145 PDF

Harmonized system of quality assessment for electronic components; detail specification: polar tantalum electrolytic capacitors DC 6.3 to 50 V, long-life grade, porous tantalum anode with solid electrolyte, rectangular shaped plastic encapsulation, radial wire leads, climatic category 55/125/56 (CECC 30201-030)
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 07/01/1991