Comparison · Converters

ROAL Electronics mod 223E (12 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 223E (12 V)2019Read review →	RBQ-31251Murata · 2018Read review →
Voltage, V	12	9.7
Current, A	4.1	40
Review conclusion	With reservations	Recommended

Only in one review: Power 50 W (ROAL Electronics mod 223E (12 V)); In test 50 W (ROAL Electronics mod 223E (12 V)); Test current 4.5 A (ROAL Electronics mod 223E (12 V)); Under load 11.85 V (ROAL Electronics mod 223E (12 V)); Ripple 1500 mV (ROAL Electronics mod 223E (12 V)); Efficiency 91.6 % (ROAL Electronics mod 223E (12 V)); No load 1.8 W (ROAL Electronics mod 223E (12 V)); Temperature rise 97 °C (ROAL Electronics mod 223E (12 V)); Price 2.81 $ (RBQ-31251).

ROAL Electronics mod 223E (12 V): It runs steadily and briefly delivers 50 W, but ripple is high and calls for an output LC filter.

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.