Replacement mosfets for Input/adapter-side power in the charger circuit

[mbedwards]

Hello,
I’ve 2 (nearly) identical boards, MS-15851, Ver 1.0 - one I9 and the other I7. I am looking for replacement mosfets as identified below:

I7 Board: SM4309 CZ26A in a 5x6 package. Is AONS21309C a correct replacement? AONS21309C Alpha & Omega Semiconductor Inc. | Discrete Semiconductor Products | DigiKey

I9 board: 21357 EL3N2U - Is AONS21357 Alpha & Omega Semiconductor Inc. | Discrete Semiconductor Products | DigiKey the correct replacement?

Thanks in advance!

[Brent_2328]

Hello @mbedwards,

Thank you for your post.

Based on the information I was able to find on the original parts with those markings, the two replacements should be good options.

They are even good footprint and pin assignment matches.

[mbedwards]

Hi Brent,

Perfect, thanks so much for the confirmation.