WPC03R 01/2009
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3 WATT REGULATED
WIDE INPUT RANGE DC/DC CONVERTER
FEATURES
Low Cost, High Performance
Small DIP Package
Full Power to +85°C
Extended Temperature Range: -40°C to +85°C
Industry Standard Pinouts
Full Short Circuit Protection
High Capacitive Loading Capability
Protected Against High Input Voltage
DESCRIPTION
The WPC03R is a family of high performance DC/DC converters
that offers regulated outputs over input voltage ranges of 9-18V,
18-36V and 34-72V while offering a wide operating temperature
range of -40°C to +85°C without derating.
Each WPC03R contains input filtering to minimize conducted
noise. The design utilizes surface mounted components, including
magnetics, to provide enhanced reliability.
The converter is designed to meet the requirements of EN60950
with the “L” pinout having 1,500 VDC isolation. All WPC03R
converters are designed to withstand input voltage transients to
200% of nominal input voltage. An additional feature is the ability
of the WPC03R to drive high capacitive loads.
WPC03R
SIMPLIFIED CIRCUIT SCHEMATIC
APPLICATIONS
Telecommunications
Battery Powered Systems
Portable Instruments
Transportation Equipment
Distributed Power Systems
Internet: http://www.murata-ps.com
ISO9001
CERTIFIED
OBSOLETE PRODUCT
Contact factory for replacement model
WPC03R 01/2009
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Output Short Circuit Protection --------------Continuous
Internal Power Dissipation ----------------------------1.5W
Max Case Temperature-----------------------------+100°C
ABSOLUTE MAXIMUM RATINGS
ORDERING INFORMATION
WPC03R xxyzz -
Device Family
Indicates wide input power 3W regulated DC/DC
Model Number
Selected from Table of Electrical Characteristics
xx=input voltage
y=number of outputs: S=single, D=dual
zz=output voltage
Pinout option E or L
ELECTRICAL SPECIFICATIONS
Specifications typical at T
A=25°C, nominal input voltage, rated output current unless otherwise stated.
Nominal Rated Max Input Max
Input Output Output Current (mA) Current Capacitive Efficiency
Voltage Voltage (mA) Load (MF) %
Model (Volts) (Volts) Min Load Rated Load Rated Load
(See Note 1)
WPC03R12S05 12 5.0 60 600 448 600 77
WPC03R12S12 12 12.0 24 250 445 250 80
WPC03R12S15 12 15.0 20 200 445 200 81
WPC03R12D05 12 +5.0 +30 +300 470 +300 74
WPC03R12D12 12 +12.0 +12 +125 475 +125 76
WPC03R12D15 12 +15.0 +10 +100 475 +100 77
WPC03R24S05 24 5.0 60 600 230 600 74
WPC03R24S12 24 12.0 24 250 230 250 75
WPC03R24S15 24 15.0 20 200 225 200 76
WPC03R24D05 24 +5.0 +30 +300 240 +300 73
WPC03R24D12 24 +12.0 +12 +125 235 +125 74
WPC03R24D15 24 +15.0 +10 +100 230 +100 75
WPC03R48S05 48 5.0 60 600 120 600 74
WPC03R48S12 48 12.0 24 250 118 250 75
WPC03R48S15 48 15.0 20 200 116 200 76
WPC03R48D05 48 +5.0 +30 +300 120 +300 73
WPC03R48D12 48 +12.0 +12 +125 118 +125 76
WPC03R48D15 48 +15.0 +10 +100 116 +100 77
NOTE 1: Although minimum load specifications are indicated for load measurement purposes, all models will operate under no-load conditions.
WPC03R 01/2009
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COMMON SPECIFICATIONS
Specifications typical at T
A=25°C, nominal input voltage, rated output current unless otherwise stated.
These devices are intended for wave soldering or manual soldering.
They are not intended to be subject to surface mount processes under any circumstances.
The normal wave soldering process can be used with these devices where the device is subjected to a maximum wave temperature of 260°C for a period of
no more than 10 seconds. Within this time and temperature range, the integrity of the device’s plastic body will not be compromised and internal temperatures
within the converter will not exceed 175°C. Care should be taken to control manual soldering limits identical to that of wave soldering.
THROUGH-HOLE SOLDERING INFORMATION
Parameter Conditions Min Typ Max Units
Input
Voltage Range 9 12 18 Vdc
18 24 36 Vdc
34 48 72 Vdc
Reflected Ripple Current 50 mA p-p
Isolation
Safety Standards Designed to meet requirements of
EN60950, EN41003 & UL1950
Rated Voltage “L” Pinout 1500 Vdc
“E” Pinout 1000 Vdc
Test Voltage —60 Hz, 10 secs “L” Pinout 1500 Vpk
“E” Pinout 1000 Vpk
Resistance 10 G7
Capacitance 220 pF
Leakage Current Viso=240Vac, 60 Hz 30 MArms
Output
Rated Power 3 W
Voltage Setpoint Accuracy +3.0 %
Temperature Coefficient +0.02 %/°C
Line Regulation-singles Low line to high line +1.5% %
Line Regulation-duals Low line to high line +1.5% %
Load Regulation-singles Min load to rated load +2% %
Load Regulation-duals Min load to rated load +2% %
Ripple & Noise BW=5 Hz to 20 MHz 50 100 mV p-p
General
Switching Frequency Variable Frequency Min - Max 70 225 kHz
MTTF per MIL-HDBK-217, Rev F TA=25° 1,000,000 Hours
Weight 12 g
Temperature
Operation -40 +85 °C
Storage -55 +125 °C
WPC03R 01/2009
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TECHNICAL INFORMATION
Notes:
1. All dimensions in inches and (millimeters).
2. Units are encapsulated in a low thermal resistance molding compound which has excellent chemical resis-
tance, wide operating temperature range, and good electrical properties under high humidity environments.
The encapsulant and outer shell of the unit have UL94V-0 ratings. Lead material is matte tin 100 microinches
min., over nickel, 40-80 microinches.
3. GRID: 0.100 inches, (2.54 mm).
4. Pin Placement Tolerance: +0.015", (+.381 mm).
MECHANICAL SPECIFICATIONS
Pin Pin Function
Number Singles Duals
2 -Vin -Vin
3 -Vin -Vin
9 No connection Common
11 No connection -Vout
14 +Vout +Vout
16 -Vout Common
22 +Vin +Vin
23 +Vin +Vin
PINOUT “E”
Pin Pin Function
Number Singles Duals
1 +Vin +Vin
2 No connection -Vout
3 No connection Common
10 -Vout Common
11 +Vout +Vout
12 -Vin -Vin
13 -Vin -Vin
14 +Vout +Vout
15 -Vout Common
22 No connection Common
23 No connection -Vout
24 +Vin +Vin
PINOUT “L”
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice. © 2009 Murata Power Solutions, Inc.
USA: Mansfield (MA), Tel: (508) 339 3000, email: sales@murata-ps.com
Canada: Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com
UK: Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com
France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com
Germany: München, Tel: +49 (0)89-544334-0, email: ped.munich@murata-ps.com
Japan: Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com
Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com
China: Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com
Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com
Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
www.murata-ps.com email: sales@murata-ps.com ISO 9001 & ISO 14001 REGISTERED
