Risk of Using 3 amp fuse for 2.5 amp plug
Fuse selection at a local hardware store is often limited to the types that are likely to be used by customers in the area. You should instead consider looking at a distributor that you can access online to gain access to a much larger selection.

If I am not mistaken you are looking for a micro fuse that measures 3.6x10mm in size. You can find sets of fuses rated at 2.5A 125V or even 250V. 

 

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