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Comparison · Power supplies

Track power supply, 48 V 2.1 A, 100 W or 12 V 100 W 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: Test current: 12 V 100 W power supply (11 A vs. 2.5); Ripple: 12 V 100 W power supply (25 mV vs. 800); Temperature rise: Track power supply, 48 V 2.1 A, 100 W (58 °C vs. 106).

ModelTrack power supply, 48 V 2.1 A, 100 WTrack power supply, 48 V 2.1 A, 100 W2026Read review →12 V 100 W power supply12 V 100 W power supply2025Read review →
Voltage, V4812
Power, W100100
Test current, A2.511
Ripple, mV80025
Protection, A3.511
Temperature rise, °C58106
Review conclusionWith reservationsRecommended

Only in one review: Current 2.1 A (Track power supply, 48 V 2.1 A, 100 W); Efficiency 87 % (Track power supply, 48 V 2.1 A, 100 W); No load 0.2 W (Track power supply, 48 V 2.1 A, 100 W).

Track power supply, 48 V 2.1 A, 100 W: A compact supply with good power and moderate heating, but its protection-trip current is much too high.

12 V 100 W power supply: A very good supply with low ripple, correctly set protection, and acceptable temperatures.

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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