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Comparison · Power supplies

1203 or AD-12-3A

Two models side by side: measurements taken by the author in their reviews, and their conclusions. The better value in each row is highlighted.

In brief: Based on review measurements: Ripple: AD-12-3A (30 mV vs. 200); Efficiency: 1203 (85 % vs. 84).

Model120312032025Read review →AD-12-3AAD-12-3A2025Read review →
Voltage, V1212
Current, A33
Ripple, mV20030
Efficiency, %8584
No load, W0.450.45
Review conclusionWith reservationsRecommended

Only in one review: Temperature rise 101 °C (AD-12-3A).

1203: Generally decent, but its protection trips far above the rated current; the author suggests staying below 2.5 A for continuous use.

AD-12-3A: It sustains 3.5 A with modest temperatures and low high-frequency ripple; the author notes a safety concern.

Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.

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