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To: slacker711 who wrote (10295)	1/22/2021 10:12:16 AM
From: Lou Weed	1 Recommendation Recommended By slacker711 Read Replies (1) \| Respond to of 10712

Thanks for the info slacker. Yep - these are basically drop in replacements for Infineon's offering. I don't see any performance differential however. They show a slightly better loss performance on slide 14 at higher current levels however I notice that they used a higher gate resistance for the competition (assuming Infineon)....4 ohms instead of 1 ohm. The higher gate resistance will slow the device down at turn on and turn off thereby increasing the loss slightly. This is definitely a specsmanship trick. If it were truly apples to apples I'm assuming basically the same performance. Plus decreasing the gate resistance is something most Engineers are hesitant to do as it causes more EMI - more severe ringing by virtue of the higher dv/dt. This creates a big headache for EMI compliance certification - it's always a trade off between best performance versus lowest EMI to get through compliance. That being said - they will have to compete at the big customers on price and tech support given the technical specs shown. Not to be a Debbie Downer but that's going to be tough at the big guys (ABB, Siemens, Rockwell, Eaton etc.).....Infineon's the big gun at these behemoths and they are entrenched in their Engineering groups. Time will tell but good to see them bring these out.......