TracoPower TMR 3 Series 3W DC-DC Converters – TracoPower TMR 3-2423WI, The TMR-3WI 3 series from TracoPower offers insulated, regulated 3W DC-DC converters with an extended 4:1 input range. These modules are supplied in a compact SIL-8 plastic casing and are ideal for a number of applications where space is critical. TracoPower TMR 3-2423WI 3W DC-DC Converter 9 – 36V DC In ±15V DC ±100mA Out