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Comparison · Power supplies

PTA-250W-12V or 60 V 5 A power supply

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: Efficiency: 60 V 5 A power supply (87 % vs. 82); Temperature rise: PTA-250W-12V (140 °C vs. 175).

ModelPTA-250W-12VPTA-250W-12V2025Read review →60 V 5 A power supply60 V 5 A power supply2021Read review →
In test, W250250
Efficiency, %8287
Temperature rise, °C140175
Review conclusionWith reservationsWith reservations

Only in one review: Voltage 12 V (PTA-250W-12V); Current 20.8 A (PTA-250W-12V); Power 250 W (PTA-250W-12V); Ripple 50 mV (PTA-250W-12V); No load 3 W (60 V 5 A power supply).

PTA-250W-12V: A good supply for about 200 W continuous, but at 250 W the diode assembly and inductor overheat.

60 V 5 A power supply: After modification, the PSU is stable, but sustains full power only with forced cooling.

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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