One of our Philips Hue lamps died recently and I found that the power supply is the reason. Two resistors burned (most likely due to overvoltage from the mains).

However, there is an SOT-23 component I couldn't identify. It probably is an AFN501DEA, but I'm not sure.

Check the photo below, "501DE". Unfortunately, I didn't find an alternative/replacement component for this. Could somebody help me find one?

component - question

hue power supply

ps top view


1 Answer 1


My guess would be it's an SMS501DE. These are marked "501DE" according to the datasheet.

Googling "SMS501DE replacement" even shows places where you can buy one.


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