Here on these pages
http://pdf.datasheetbank.com/datasheet-download/882564/1/Infineon/6R190E6 and
http://pdf.datasheetbank.com/datasheet-download/ 884663/1 / Toshiba / TK8A65D you can see the characteristics of each one. As you can see the difference is in the amperage they handle, the
6R190E6 drives continuously between 12.8 and 20.2 amps maximum depending on the temperature to which it is subjected, instead the
TK8A65D handles 8 amps, in other words its equivalence will depend on its use.
If you are sure that it will not exceed 8 amps, take it as a replacement. You could try it to see how it works. Greetings ...