IEC 60950-1. CB, TUV. De-rating above 50°C. MTBF to MIL-HDBK-217F (25°C). 3. SD-1000 Series Single Output Enclosed Regulated Isolated DC-DC Converter. High reliability 1U low profile - 41mm High power density - 10.7W/inch³ Ultra-wide 4:1 input voltage range Regulated outputs 12V, 0.25A auxiliary output Easy installation - screw terminals Adjustable output voltage EMC meets EN 55022 Class B Forced air cooling by built-in dual fans with speed control Remote ON/OFF control Remote sense LED power-on indicator Short circuit, over-load, over-voltage and over-temperature protection 2kV input / output isolation