The TDN 3-1222WISM is an Isolated DC/DC Converter manufactured by TRACO Power. It has a 3 watt output power, operates in the 4.5-18Vin range, and outputs +/-12V at +/-125mA. It is designed for surface mount technology (SMT) applications. The TDN 3-1222WISM features a wide operating temperature range (-40 to +105°C), high efficiency of up to 92%, low ripple & noise, and 100% full load burn-in test. The converter includes under voltage and over temperature protection, as well as remote ON/OFF control.