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Comparison · Power supplies

AD-12-2A or Sanmim GPN30E-15

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: Sanmim GPN30E-15 (80 mV vs. 250); Efficiency: Sanmim GPN30E-15 (82 % vs. 76); Temperature rise: Sanmim GPN30E-15 (100 °C vs. 128).

ModelAD-12-2AAD-12-2A2025Read review →Sanmim GPN30E-15Sanmim GPN30E-152023Read review →
Voltage, V1215
Current, A22
Ripple, mV25080
Efficiency, %7682
Temperature rise, °C128100
Review conclusionWith reservationsRecommended

Only in one review: No load 0.5 W (AD-12-2A); Price 6.76 $ (Sanmim GPN30E-15).

AD-12-2A: It can run continuously at 2 A, but the output diode gets hot; the author recommends 1.7–1.8 A instead.

Sanmim GPN30E-15: The supply remains stable at twice its rated load, but has cheap terminals and a hot output diode.

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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