Comparison · Converters

ROAL Electronics mod 223 (5 V) or RBQ-31251

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: These devices have no measurements in common that would show one is better than the other. Compare the review conclusions below.

Model	ROAL Electronics mod 223 (5 V)2019Read review →	RBQ-31251Murata · 2018Read review →
Voltage, V	5	9.7
Current, A	10	40
Review conclusion	With reservations	Recommended

Only in one review: Power 50 W (ROAL Electronics mod 223 (5 V)); In test 50 W (ROAL Electronics mod 223 (5 V)); Test current 10 A (ROAL Electronics mod 223 (5 V)); Ripple 1400 mV (ROAL Electronics mod 223 (5 V)); Efficiency 91.3 % (ROAL Electronics mod 223 (5 V)); Price 2.81 $ (RBQ-31251).

ROAL Electronics mod 223 (5 V): It maintains stable output and briefly delivers 50 W, but ripple is high and an LC filter is needed.

RBQ-31251: A genuine converter with a heatsink; the author estimates it can deliver 20–25 A without additional 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.