The QMJ20H24S12 from Calex Manufacturing is a DC to DC Converter with Input Voltage 9 to 36 V, Output Voltage 1 12 V, Output Current 1 1670 mA, Output Power 20 W, Isolation Voltage 1.5 kV. Tags: Through Hole, Buck-Boost. More details for QMJ20H24S12 can be seen below.