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External Power Adapters Key Product Criteria

Qualifying External Power Adapters must meet both Active and No-Load mode requirements below.

Criteria for Active Mode

Nameplate Output Power (Pno) Minimum Average Efficiency in Active Mode
(expressed as a decimal)
0 to <= 1 watt >= 0.49 * Pno
> 1 to <= 49 watts >= [0.09 * Ln (Pno)} + 0.49
> 49 watts >= 0.84

Criteria for No-Load Mode

Nameplate Output Power (Pno) Maximum Power in No-Load
0 to < 10 watts <= 0.5 watts
>= 10 to <= 250 watts <= 0.75 watts