Murata Ceramic Capacitor GRM188Z71C475KE21D is one that we do not carry a direct cross for. GRM188Z71C475KE21(GRM188Z71C475KE21D,GRM188Z71C475KE21J)|Ceramic Capacitors(SMD)|Ceramic Capacitors|Capacitors|Murata Manufacturing Co., Ltd.
The part may be special ordered by contacting sales@digikey.com
Some possible alternatives that may be used are on the link below.
They have different temperature coefficients. To see the difference in the temperature coefficient codes please see the below post.