From the marking ‘P21N03’ the mosfet is from taiwan producer Excelliance MOS Corp. and the specific model is: EMP21N03HC
Here is the datasheet: https://web.excelliancemos.com/datasheet/MOS/EMP21N03HC.pdf
From the marking ‘P21N03’ the mosfet is from taiwan producer Excelliance MOS Corp. and the specific model is: EMP21N03HC
Here is the datasheet: https://web.excelliancemos.com/datasheet/MOS/EMP21N03HC.pdf