This post is for informational purposes only. Please review the manufacturer specifications to verify any recommended parts are suitable for your application.
2SK694 is an N-Channel MOSFET that was made by isc (aka Inchange Semiconductor). Based on the specifications from a copy of the datasheet found on alltransistors .com,
2SK694 (235.3 KB) we do carry some possible alternatives.
The best options seem to be part numbers IPP50R280CEXKSA1-ND and 448-IPP50R250CPXKSA1-ND, both made by Infineon Technologies. They have a slightly higher drain current maximum compared to the original part number.