The PQB3-D5-S12-D from CUI is a DC to DC Converter with Input Voltage 4.5 to 9 V, Output Voltage 1 12 V, Output Current 1 250 mA, Output Power 3000 mW, Isolation Voltage 1500 VDC. Tags: Through Hole, Boost/Step Up. More details for PQB3-D5-S12-D can be seen below.