Excelliance MOS datasheet for the B09N03, delivered as a 226 KB PDF. The part numbering suggests an N-channel MOSFET, so expect pin assignments, drain-source voltage, on-resistance and thermal data inside. Laptop and motherboard repair technicians consult a sheet like this when a MOSFET in a VRM or system power stage reads shorted, so they can identify pins, test the device out of circuit and choose a compatible substitute. Compare the top marking on the chip with the code in the marking section before ordering a replacement.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @ic_mosfet_pdf_datasheets. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @ic_mosfet_pdf_datasheets | 1 Jun 2021 | Open file on RM Schematics |
| @ShareMan_Electronic_Files | 28 Apr 2025 | Open file on RM Schematics |
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.