DigiKey is not a distributor for Lelon Electronics products, and can not get their 151X1220BC01PC02 capacitors. We do have similar Capacitors that may work for your application.
A possible alternate for the Lelon Electronics Capacitor 151X1220BC01PC02, is Cornell Dubilier Capacitor 550C902T400DG2D (DigiKey part number 550C902T400DG2D-ND)
This is a 105C max temperature part. Click here for the datasheet.
Please review the datasheet to ensure the alternative works for your application.