We do not currently carry the LNF-P3X-100-42 capacitor from ICAR (Italy). I wasn’t even able to find a datasheet for it. The following list of possible alternatives is based on the picture below. Without a datasheet to go off these are an educated guess. Please review the datasheets of the alternatives and proceed with all caution when you choose one for your application.
100 µF Film Capacitors | Electronic Components Distributor DigiKey