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Since it is still being made as a RoHS part and in stock at distributors such as Mouser, you do not need a substitute for the VTS40100CT.
ST Microelectronics claims that their STP10NK60ZFP is a match for the 2sk3298.
Only a skilled engineer with a knowledge of the final application could know for sure.
As you have refused to put your location into your UserCP, I must assume that you have the same access to the market as I do.