MAL202138479E3 Electrolytic Capacitor, Miniature, 47 µF, 63 V, 021 ASM Series. The Vishay 021 ASM series are axial leaded, miniature, standard aluminium electrolytic capacitors. The capacitance value ranges from 1µF to 15mF. These capacitors are used in smoothing, filtering, buffering circuits, power supply, audio-video and general purpose applications.