Recom rpp20 sw series dual output 20w dc dc converter recom rpp20 2412dw p the recom 20w rpp20 2412dw dual output dc dc converter has a wide input voltage range of 4 1 the converter is ideal for high end industrial applications and cots military applications where a wide operating temperature range of 45 deg c to 97 deg c is required p p although the case size is compact the converter contains a built in filter en55022 class b fcc level b without the need for any external component