TRACOPOWER TEN 20WIR 20W Isolated DC-DC Converter Through Hole, Vin 18 → 75 V dc, Vout ±15V dc Railway Approved. Input Voltage Nominal: 48 V dc. Isolation Voltage: 1.5kV dc. Output Current: ±667mA. Medical Approved: No. Railway Approved: Yes. Efficiency: 0.89. Minimum Temperature: -40°C. Maximum Temperature: +85°C. Line Regulation: 0.2. MPN: TEN 20-4823WIR