WIMA filter capacitors are designed on the basis of low-loss Polypropylene film and exhibit high AC current capability at high frequencies as well as low ESL and ESR values. The 440 VAC range has an internal series connection and stands out for an increased corona discharge inception voltage.
The second letter "K" stands for plastic film capacitors. The numbers following are WIMA-specific markings. Metallized paper capacitors are marked with "MP". The cases of 2.5 mm and 5 mm capacitors are too small to imprint with the series type (i.e. MKS 2, FKS 2 etc.).
WIMA capacitors are produced with the proven box technology using solvent-resistant, flame-retardant plastic cases according to UL 94 V-0. They are environmentally compatible with the RoHS 2015/863/EU regulations of the European Union. * The insulation resistance data refers to the lowest rated voltage of each range.
No danger of delamination, internal cracks or tearing away of the contacts due to similar expansion coefficient and the elasticity of the construction. Excellent self-healing properties of metallized WIMA capacitors due to pressure free layers in the winding element. Flame retardant plastic case in accordance with UL 94 V-0.
Hence it is recommended to refrain from applying industrial washing processes for WIMA SMD capacitors in order to avoid possible damages. Due to the stress which the components are subjected to during processing, reversible parameter changes occur in almost all electronic components.
Taped WIMA SMD capacitors are shipped in humidity protection bags according to JEDEC standard (ESD/EMI-shield / water-vapour proof). Under controlled conditions the components can be stored two years and more in the originally sealed bag. Opened packing units should immediately be used up for processing.