187-4397, TRACOPOWER, TRACOPOWER TBA 1E DC-DC Converter, ±15V dc/ ±33mA Output, 21.6 → 26.4 V dc Input, 1W, Through Hole, +85°C Max TRACOPOWER TBA 1E DC-DC Converter, ±15V dc/ ±33mA Output, 21.6 → 26.4 V dc Input, 1W, Through Hole, +85°C Max