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Comparison · Power supplies

12 V 200 W power supply or PTA-200W-12V

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: Test current: 12 V 200 W power supply (21.5 A vs. 18); Ripple: PTA-200W-12V (60 mV vs. 100); Efficiency: 12 V 200 W power supply (87 % vs. 84); Temperature rise: PTA-200W-12V (115 °C vs. 120).

Model12 V 200 W power supply12 V 200 W power supply2025Read review →PTA-200W-12VPTA-200W-12V2025Read review →
Voltage, V1212
Power, W200200
Test current, A21.518
Ripple, mV10060
Efficiency, %8784
Temperature rise, °C120115
Review conclusionRecommendedWith reservations

Only in one review: In test 216 W (PTA-200W-12V); Protection 21.5 A (12 V 200 W power supply).

12 V 200 W power supply: Well designed, with low ripple and little heating; one output diode assembly runs hotter than desirable.

PTA-200W-12V: This budget supply handles about 216 W, but its rectifier and choke get hot, and low-frequency ripple is high.

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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