TRACOPOWER TMR 3WIR 3W Isolated DC-DC Converter Through Hole, Vin 9 → 36 V dc, Vout 12V dc Railway Approved. Input Voltage Nominal: 24 V dc. Isolation Voltage: 1600V dc. Output Current: 250mA. Railway Approved: Yes. Package: SIP 8. Efficiency: 0.82. Minimum Temperature: -40°C. Maximum Temperature: +85°C. Line Regulation: 0.002. MPN: TMR 3-2412WIR