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Comparison · Power supplies

HCF-250-12 or PTA-250W-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: In test: HCF-250-12 (331 W vs. 250); Ripple: PTA-250W-12V (50 mV vs. 85); Temperature rise: HCF-250-12 (103 °C vs. 140).

ModelHCF-250-12HCF-250-122026Read review →PTA-250W-12VPTA-250W-12V2025Read review →
Voltage, V1212
Current, A2120.8
Power, W250250
In test, W331250
Ripple, mV8550
Temperature rise, °C103140
Review conclusionRecommendedWith reservations

Only in one review: Efficiency 82 % (PTA-250W-12V).

HCF-250-12: It performs well at rated load and nearly 15% overload, though its protection threshold is set too high.

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

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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