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QME48T20120 DC-DC Converter Data Sheet
36-75 VDC Input; 12 VDC @ 20 A Output
Data Sheet
Features
? RoHS lead free solder and lead-solder-exempted
products are available
? Delivers up to 20 A
? Industry-standard quarter-brick pinout
? On-board input differential LC-filter
? Startup into pre-biased load
? No minimum load required
? Dimensions: 1.45” x 2.30” x 0.482”
(36.83 x 58.42 x 12.24 mm)
? Weight: 1.25 oz [35.85 g]
? Meets Basic Insulation requirements of EN60950
? Withstands 100 V input transient for 100 ms
? Fixed-frequency operation
? Fully protected
Applications
? Telecommunications
? Data communications
? Wireless communications
? Remote output sense
? Fully protected with automatic recovery
? Positive or negative logic ON/OFF option
? Output voltage trim range: +10%/ ? 20% with
industry-standard trim equations
?
Servers, workstations
? High reliability: MTBF approx. 8.7 million hours,
calculated per Telcordia TR-332, Method I Case 1
? UL/CSA60950-1, EN60950-1, and IEC60950-1
Benefits
? High efficiency – no heat sink required
safety approved
? Designed to meet Class B conducted emissions per
FCC and EN55022 when used with external filter
? All materials meet UL94, V-0 flammability rating
Description
The QME48T20120 converter of the QME-Series provides outstanding thermal performance in high temperature
environments. This performance is accomplished through the use of patented/patent-pending circuits, packaging,
and processing techniques to achieve ultra-high efficiency, excellent thermal management, and a low-body profile.
The low-body profile and the preclusion of heat sinks minimize impedance to system airflow, thus enhancing
cooling for both upstream and downstream devices. The use of 100% automation for assembly, coupled with
advanced electronic circuits and thermal design, results in a product with extremely high reliability.
Operating from a 36-75 V input, the QME-Series converters provide outputs that can be trimmed from –20% to
+10% of the nominal output voltage, thus providing outstanding design flexibility.
ZD-01742 Rev 3.4, 21-Jan-10
www.power-one.com
Page 1 of 14
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