174-2172, TRACOPOWER, TRACOPOWER TEC 3 DC-DC Converter, 12V dc/ 250mA Output, 18 → 36 V dc Input, 3W, Through Hole, +90°C Max Temp TRACOPOWER TEC 3 DC-DC Converter, 12V dc/ 250mA Output, 18 → 36 V dc Input, 3W, Through Hole, +90°C Max Temp