Adding surge protection to a SPS?

Battery charger's SPS blew a resistor on the input side during plug-in (no "on-off" switch).

Simplest way to prevent similar occurrence in future?

Thanks,

Reply to
DaveC
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Replace same value resistor with a larger wattage. This assumes the resistor blew not due to other internal component failures.

Cauti> Battery charger's SPS blew a resistor on the input side during

Reply to
w_tom

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