187-4001, TRACOPOWER, TRACOPOWER TBA 1HI DC-DC Converter, 9V dc/ 111mA Output, 4.5 → 5.5 V dc Input, 1W, Through Hole, +85°C Max Temp TRACOPOWER TBA 1HI DC-DC Converter, 9V dc/ 111mA Output, 4.5 → 5.5 V dc Input, 1W, Through Hole, +85°C Max Temp