Cosel has launched four new open-frame (with no heatsink), isolated, DC-DC converters suitable for computer and communication equipment applications. The new CES, CQS, CQB and SFS Series DC-DC power modules are eighth-brick (CES) and quarter-brick (CQS & CQB) converters.
The CES and CQS Series are single-output type converters of 1,8, 2,5 and 3,3 V with an output power range of 54 to 148,5 W. The CQB Series is another quarter-brick converter with dual outputs of 1,8 V (17 A) and 3,3 V (15 A) (total power 80 W). The new power modules feature a high efficiency of 92,5% for the CQS Series at 3,3 V, and a high density of 1966 W/cm3 for the CES Series, and 2196 W/cm3 for the CQS Series. In addition, the wide operation temperature range of -40 to +85°C and high reliability without built-in aluminium and tantalum electrolytic capacitors make the converters suitable for telecoms applications.
The SFS Series is another small-size converter with a small footprint and a low-profile, measuring only 39,9 x 5 x 27,2 mm for the SFS10/SFS15 (10 W/15 W), and only 39,9 x 8 x 31,2 mm for the SFS30 (30 W). The series can deliver 1,2 to 15 V output voltage and can operate in a wide operating temperature range between -40 and +85°C.
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