Hello,
I appears that STD25N10 is designed to a replacement for the STD15NF10. Do you confirm?
Do you have any comparisons or recommendations about external gate resistors when this device is used in a three phase inverter application?
NOTE: This question and answer originated from a customer support case which was handled by us. We regularly review support cases and add any helpful ones here for all to benefit from.
STD25N10F7 can be suitable replacement for the legacy part STD15NF10, due to it's superior Rdson and similar current rating. The F7 technology is a trench style MOSFET v. the NF planar style, so it will switch faster and may have weaker thermal, avalanche, and SOA characteristics. A close comparison by datasheet is necessary to determine if it is suitable for your application.
Gate resistor selection is highly dependent on application considerations - Layout, switching frequency, EMI constraints, current, etc. We recommend laying out for both turn on and turn off resistors and adjusting them by experiment to meet your needs.
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