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Comparison · Power supplies

PTA-250W-12V or HCF-250-12

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); Test current: HCF-250-12 (28 A vs. 23); Ripple: PTA-250W-12V (50 mV vs. 85); Temperature rise: HCF-250-12 (103 °C vs. 140).

ModelPTA-250W-12VPTA-250W-12V2025Read review →HCF-250-12HCF-250-122026Read review →
Voltage, V1212
Current, A20.821
Power, W250250
In test, W250331
Test current, A2328
Ripple, mV5085
Protection, A2428
Temperature rise, °C140103
Review conclusionWith reservationsRecommended

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

PTA-250W-12V: A good supply for about 200 W continuous output; the diode assembly and inductor overheat at full load.

HCF-250-12: Handles rated load and nearly 15% overload well, though its protection threshold is too 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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