it said 12v AC, not DC.
12v AC gives you 17 volts peak. So you are feeding it with 17v.
I suspect that your supply gave you even more than 12v due to the light load and exceeded the voltage rating of the input capacitor.
it said 12v AC, not DC.
12v AC gives you 17 volts peak. So you are feeding it with 17v.
I suspect that your supply gave you even more than 12v due to the light load and exceeded the voltage rating of the input capacitor.