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Hello,
I can't identify this MOSFET component part BA5 NI OS JMD3909, who is the manufacturer? to find the datasheet and find an equivalent replacement. Thanks for your help !!
The 3909 is likely the date code (39th week of 2009).
The Mosfets is likely a Chinese-made part with the 5N10 being the critical parameters
5Amp
N-channel
100V
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