UWR Series
www.murata-ps.com
Single Output, High Reliability, 2" x 1", 6-10 Watt, DC-DC Converters
FEATURES
Low Cost! Highly reliable!
Proven SMT-on-pcb construction
PRODUCT OVERVIEW
Designed to meet UL/EN/IEC 60950-1,
CAN/CSA-C22.2 60950-1
Placing reliability and cost considerations above
the intention of precipitating any potential electrical,
mechanical or process weaknesses.
all others, Murata Power Solutions' new A-Series DC/
DC Converters combine straightforward circuit topolo-
gies, the newest components, proven SMT-on-pcb
construction, and highly repeatable automatic assem-
bly techniques. Considering the critical low-cost and
long-term-reliability requirements of today’s telecom,
datacom and computer/networking applications, the
A-Series may well be the most cost-effective DC/DC’s
available today.
Qual tested; HALT tested; EMC tested
Packaged in 2" x 1" x 0.375" shielded metal
cases with non-conductive coatings, these fully
isolated (1500Vdc guaranteed) DC/DC’s offer excellent
line/load regulation, full I/O protection, and industry-
standard pinouts.
Output voltages include 5, 5.2, 12 and 15 Volts.
Input voltage ranges are either 4.7-7.25V ("D5A"
models), 9-18V ("D12A" models) or 18-75V ("D48A"
models). All A-Series UWR models are fully EMI char-
acterized and agency safety approved.
Small packages, 2" x 1" x 0.375"
Standard pinouts
5, 5.2, 12 or 15 Volt outputs
Choice of 3 wide-range inputs:
4.7-7.25 Volts
9-18 Volts
18-75 Volts
The single-output, 6-10 Watt Models of the
A-Series deliver both high power densities and
impressive MTBF’s. Their superior durability is
substantiated by a rigorous in-house qualification pro-
gram including HALT (Highly Accelerated Life Testing).
The goal of HALT is not to simulate field conditions but
to expose devices to multiple excessive stresses with
Fully isolated, 1500Vdc guaranteed
A-Series DC/DC’s are extremely reliable, easy-
to-use, cost-effective power converters. Use them
to improve the reliability of existing equipment or to
develop new systems that exceed design objectives.
–40 to +100°C operation
5-side metal shielded cases with non-
conductive baseplates
Modifications and customs for OEMs
+VOUT
(3)
+VIN
(1)
COMMON
(5)
Typical topology is shown
–VIN
(2)
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
Figure 1. Simplified Schematic
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
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