Thank you for the help on the Mouser 647-USV1C100MFD. I went to order and now the C11 100uF/25V (UTT1E101MPD) is backordered...available but backordered. I tried Mouser's cap finder tool and came up with UHE1E101MED which is 6.3 diameter (smaller) and 11mm long (longer).
Again, your help is appreciated.