Comparison · Converters

Martek power, 48 V → ±12 V, 630 mA or Lineage power SW001A2B91Z

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: Temperature rise: Lineage power SW001A2B91Z (72 °C vs. 85).

Model	Martek power, 48 V → ±12 V, 630 mA2019Read review →	Lineage power SW001A2B91Z2019Read review →
Temperature rise, °C	85	72
Weight, g	16	8
Review conclusion	Recommended	Recommended

Only in one review: Voltage 12 V (Martek power, 48 V → ±12 V, 630 mA); Current 1.25 A (Lineage power SW001A2B91Z); Test current 1.6 A (Lineage power SW001A2B91Z); Efficiency 90 % (Lineage power SW001A2B91Z); Price 0.9 $ (Martek power, 48 V → ±12 V, 630 mA).

Martek power, 48 V → ±12 V, 630 mA: It delivers up to 800 mA, but voltages shift substantially under unbalanced load; overall, the author is satisfied.

Lineage power SW001A2B91Z: The author liked this compact isolated converter: it holds voltage steadily and suits loads up to 15 W.

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.