SQE48T20120 DC-DC Converter Data Sheet
36-75 VDC Input; 12 VDC @ 20A Output
Features
RoHS lead-free solder and lead-solder-exempted
products are available
Industry-standard quarter-brick pin-out
Delivers 240W at 94.5% efficiency
Withstands 100V input transient for 100ms
Fixed-frequency operation
On-board input differential LC-filter
Start-up into pre-biased load
No minimum load required
Meets Basic Insulation requirements
Fully protected (OTP, OCP, OVP, UVLO)
Positive or negative logic ON/OFF option
Low height of 0.44” (11.18mm)
Weight: 33.3g
Applications
Intermediate Bus Architectures
Data communications/processing
LAN/WAN
High reliability: MTBF = 14.3 million hours,
Servers, Workstations
calculated per Telcordia SR-332, Method I Case 1
Safety according to IEC/EN 60950-1 2nd Edition and
Benefits
UL/CSA 60950-1 2nd Edition
High efficiency – no heat sink required 1
Designed to meet Class B conducted emissions per
FCC and EN55022 when used with external filter
Industry-standard 1/8th brick footprint: 0.896” x
2.30” (2.06 in2) - 38% smaller than conventional
quarter-bricks
All materials meet UL94, V-0 flammability rating
Description
The new iPWERTM high-performance 20A SQE48T20120 DC-DC converter provides a high efficiency single
output, in a 1/8th brick package that is only 62% the size of the industry-standard quarter-brick. Specifically
designed for operation in systems that have limited airflow and increased ambient temperatures, the
SQE48T20120 converter utilizes the same pin-out and Input/Output functionality of the industry-standard quarter-
bricks. In addition, a heat spreader feature is available (-xxxBx suffix) that provides an effective thermal interface
for coldplate and heat sinking options.
The SQE48T20120 converter thermal 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.
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 wide-range 36-75V input, the iPWER SQE48T20120 converter provides a fully regulated 12V
output voltage. Employing a standard power pin-out, the SQE48T20120 converter is an ideal drop-in replacement
for existing high current eighth-brick and quarter-brick designs. Inclusion of this converter in a new design can
result in significant board space and cost savings. The designer can expect reliability improvement over other
available converters because of the SQE48T20120‟s optimized thermal efficiency.
1
Baseplate/heat spreader option (suffix „-xxxBx‟) facilitates heatsink mounting to further enhance the unit‟s thermal capability.
MCD10157 Rev. 1.5, 18-Apr-11
www.power-one.com
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