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Comparison · Power supplies

АД-12-2A or 5 V 2 A power supply with microUSB plug

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: 5 V 2 A power supply with microUSB plug (150 mV vs. 250); Temperature rise: 5 V 2 A power supply with microUSB plug (62.2 °C vs. 128).

ModelАД-12-2ААД-12-2A2025Read review →5 V 2 A power supply with microUSB plug5 V 2 A power supply with microUSB plug2015Read review →
Voltage, V125
Current, A22
Test current, A22
Ripple, mV250150
Temperature rise, °C12862.2
Review conclusionWith reservationsWith reservations

Only in one review: Under load 12.28 V (АД-12-2A); Efficiency 76 % (АД-12-2A); No load 0.5 W (АД-12-2A); Protection 3 A (АД-12-2A).

АД-12-2A: Regulation is excellent, but the output diode gets hot at 2 A; for continuous use, limit current to 1.7–1.8 A.

5 V 2 A power supply with microUSB plug: Works acceptably up to 1.5 A, but voltage sags above that and it can interfere with some touchscreens.

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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