Yes, it's acceptable if the MOSFET chips differ.
Yes, it's acceptable if the MOSFET chips differ.
Your Alienware 17 R5 has six AON6962 mosfets, some damaged and needing replacement. New AON6962 chips are no longer available, making it tricky to source them. Some users are switching to AON6992 as a substitute since its specs are close enough. If you replace the burnt AON6962 chips with AON6992, should you leave the remaining AON6962 chips in place or swap them out entirely so all chips match the AON6992 specification?
You're checking the specifications side by side. The drain voltage and current match between the two parts. The resistance values are close, which is good. Since the traces are likely much larger than the MOSFET's on-resistance, the PCB layout probably has a bigger impact than the actual value. This shouldn't be a big issue. You're wondering if swapping them would make a difference, especially given the part sizes and your experience with sourcing components. It sounds like you're dealing with SMD parts that are hard to replace, which you've faced before in your projects. The activation voltages seem consistent across both models, so it looks promising to proceed.
You need to replace every burnt chip, not just the ones in AON6992.
Sorry, I didn't fully understand your message. It seems you're concerned about potential issues with replacing components and want clarification. The situation is uncertain without reviewing a schematic to evaluate risks. You mentioned the parts are similar, so replacement should be straightforward, but it's wise to investigate why the MOSFETs failed initially. Also, you're curious about your replacement strategy.