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Comparison · Power supplies

12 V 150 W power supply or PTA-150W-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: Ripple: PTA-150W-12V (70 mV vs. 400); Efficiency: 12 V 150 W power supply (89 % vs. 84); Temperature rise: PTA-150W-12V (103 °C vs. 130).

Model12 V 150 W power supply12 V 150 W power supply2026Read review →PTA-150W-12VPTA-150W-12V2025Read review →
Voltage, V1212
Power, W150150
Ripple, mV40070
Efficiency, %8984
Temperature rise, °C130103
Review conclusion—With reservations

Only in one review: Current 12.5 A (12 V 150 W power supply).

12 V 150 W power supply: The 150 W model has about 89% efficiency, but its snubber and power transistors overheat under load.

PTA-150W-12V: A budget PSU with acceptable temperature and efficiency, but high low-frequency ripple and insufficient input capacitance.

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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