I'm trying to repair a Copley servo drive that appears to have suffered a shoot-through. the MOSFETs appear to be driven by tc4426cpas. The high side has IRF9540s, which i can get for a decent price. The low side has RFP18n10s, which I can't find for less than $10 each. I think from some basic parameter matching that IRF540PBFs can be used instead, what do you guys think?