ECE-A1HKA010 is obsoleted though, did you find a replacement for this?
Any standard 1uf electrolytic will do, I would suggest:
USR1H010MDD Different manufacturer but 1uF 50 v and same dimensions 4x7mm
ECE-A1EKA4R7 is also out of stock, with a lead time of 16 weeks.
I would use 667-ECE-A1HKA4R7 (same brand, dimensions 4x7, 4.7uF and 50V)