Power-One Unveils QKS48T210120 Quarter-Brick Converter
Power-One Inc. (Camarillo, CA), a developer of power supplies and components, introduced its new 21 A, 12 Vdc output QKS48T210120 quarter-brick dc-dc converter, which combines IBA-optimized loose regulation with efficiencies up to 94%, making it a suitable power source for point-of-load converters in networking, ATCA, wireless communications and data processing applications.
A single-board design incorporating advanced thermal-management techniques facilitates minimal power derating over elevated ambient temperatures. Only 300 LFM of cooling is required to provide full-rated power at temperatures up to 55 °C. At 70 °C ambient, 15.7 A (188 W) are available with 200 LFM cooling.
The QKS48T210120 operates over a 36 Vdc to 75 Vdc input range, and will withstand a 100 V/100 msec input-voltage surge. Additional features include 1,500 Vdc input-to-output isolation, basic safety insulation rating and startup into pre-biased loads. Interface capabilities include primary-referenced remote on/off and remote sense. Protection features include output backdrive, output over-voltage and over-current, under-voltage lockout and over-temperature.
The QKS48T210120 is designed to comply with NEBS GR-1089 and GR-63. Regulatory agency approvals include UL60950-1, CSA C22.2 No. 60950-1-03, TUV EN60950-1:2001, and IEC60950-1:2001. Pricing is $55 each in quantities of 1,000. Evaluation units are usually available from stock. Production quantities are typically available in six to eight weeks.
