The R79 series capacitors from KEMET are radial lead single sided metalized polypropylene film capacitors for multipurpose applications. The radial leads of tinned wire are electrically welded to the metal layer on the ends of the capacitor winding. The capacitor is encapsulated with a self extinguishing thermosetting resin in a box material meeting the UL 94 V0 requirements. Two different winding constructions are used depending on voltage parameters and lead spacing. Typical applications include timing, oscillator circuits, high frequency coupling and decoupling applications. It is not suitable for across the line application.