TRACOPOWER TEP 100 100W Isolated DC-DC Converter Through Hole, Voltage in 9 → 18 V dc, Voltage out 5V dc Railway, Output Voltage Adjustment Range: –20 → +10%, Input Voltage Nominal: 12 V dc, Isolation Voltage: 2.25kV, Railway Approved: Yes, MPN: TEP 100-1211-CMF