Wima fkp series 115 piece polypropylene capacitor kit wima musterkasten 4 fkp this capacitor kit contains 115 pieces from the wima fkp2 range of radial lead thin film polypropylene capacitors suitable for use in heavy frequency applications like sample and hold timing lc filter resonant circuits audio range wima musterkasten 4 fkp 115 piece polypropylene capacitor