DC/DC Converter
A05_S-1WR3 & B05_LS-1WR3 Series
2019.10.15-A/5 Page 1 of 5
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Selection Guide
Certification
Part No.
Input Voltage(VDC)
Output
Full Load
Efficiency(%)
Min./Typ.
Nominal
(Range)
Voltage
(VDC)
Current(mA)
Max./Min.
CE
A0503S-1WR3
5
(4.5-5.5)
±3.3
±152/±15
70/74
UL/CE/CB
A0505S-1WR3
±5
±100/±10
78/82
A0509S-1WR3
±9
±56/±6
79/83
A0512S-1WR3
±12
±42/±5
79/83
A0515S-1WR3
±15
±34/±4
79/83
A0524S-1WR3
±24
±21/±3
81/85
B0503LS-1WR3
3.3
303/30
70/74
B0505LS-1WR3
5
200/20
78/82
B0509LS-1WR3
9
111/12
79/83
B0512LS-1WR3
12
84/9
79/83
B0515LS-1WR3
15
67/7
79/83
B0524LS-1WR3
24
42/4
81/85
Note: *The specified maximum capacitive load for positive and negative output is identical.
Input Specifications
Item
Operating Conditions
Min.
Typ.
Max.
Unit
Current
(full load / no-load)
3.3VDC/5VDC output
--
270/5
286/10
mA
9VDC/12VDC output
--
241/12
254/20
15VDC/24VDC output
--
241/18
254/30
Reflected Ripple Current*
--
15
--
Surge Voltage (1sec. max.)
5VDC input
-0.7
--
9
VDC
Input Filter
Capacitance filter
Hot Plug
Unavailable
Note: * Refer to DC-DC Converter Application Notes for detailed description of reflected ripple current test method.
Output Specifications
Item
Operating Conditions
Min.
Typ.
Max.
Unit
Voltage Accuracy
See output regulation curve(Fig. 1)
Linear Regulation
Input voltage change: ±1%
3.3VDC output
--
--
1.5
%
Others
--
--
1.2
1W isolated DC-DC converter
Fixed input voltage and unregulated dual/single output
CBPatent Protection RoHS
FEATURES
Continuous short-circuit protection
No-load input current as low as 5mA
Operating temperature range: -40℃to +105℃
High efficiency up to 85%
I/O isolation test voltage 1.5k VDC
Industry standard pin-out
SIP package
IEC62368, UL62368, EN62368 approved
A05_S-1WR3 & B05_LS-1WR3 series are specially designed for applications where an isolated (two isolated) voltage is required in a
distributed power supply system. They are suitable for: pure digital circuits, low frequency analog circuits, relay-driven circuits and data
switching circuits.
DC/DC Converter
A05_S-1WR3 & B05_LS-1WR3 Series
2019.10.15-A/5 Page 2 of 5
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Load Regulation
10%-100% load
3.3VDC output
--
15
20
%
5VDC output
--
10
15
9VDC output
--
8
10
12VDC output
--
7
10
15VDC output
--
6
10
24VDC output
--
5
10
Ripple & Noise*
20MHz bandwidth
Others
--
30
75
mVp-p
24VDC output
--
50
100
Temperature Coefficient
100% load
--
±0.02
--
%/℃
Short-circuit Protection
Continuous, self-recovery
Note: * The “parallel cable” method is used for Ripple and Noise test, please refer to DC-DC Converter Application Notes for specific information.
General Specifications
Item
Operating Conditions
Min.
Typ.
Max.
Unit
Isolation
Input-output Electric Strength Test for 1 minute with a
leakage current of 1mA max.
1500
--
--
VDC
Insulation Resistance
Input-output resistance at 500VDC
1000
--
--
MΩ
Isolation Capacitance
Input-output capacitance at 100kHz/0.1V
--
20
--
pF
Operating Temperature
Derating when operating temperature≥85℃,
(see Fig. 2)
-40
--
105
℃
Storage Temperature
-55
--
125
Case Temperature Rise
Ta=25℃
3.3VDC output
--
25
--
Others
--
15
--
Pin Soldering Resistance
Temperature
Soldering spot is 1.5mm away from case for 10 seconds
--
--
300
Storage Humidity
Non-condensing
--
--
95
%RH
Switching Frequency
100% load, nominal input voltage
--
270
--
KHz
MTBF
MIL-HDBK-217F@25℃
3500
--
--
K hours
Mechanical Specifications
Case Material
Black plastic; fiame-retardant and heat-resistant (UL94 V-0)
Dimensions
19.65 x 6.00 x 10.16mm
Weight
2.1g(Typ.)
Cooling Method
Free air convection
Electromagnetic Compatibility (EMC)
Emissions
CE
CISPR32/EN55032 CLASS B (see Fig. 4 for recommended circuit)
RE
CISPR32/EN55032 CLASS B (see Fig. 4 for recommended circuit)
Immunity
ESD
IEC/EN61000-4-2 Air ±8kV , Contact ±4kV perf. Criteria B
Typical Characteristic Curves
3.3VDC output
Others
Fig. 1
DC/DC Converter
A05_S-1WR3 & B05_LS-1WR3 Series
2019.10.15-A/5 Page 3 of 5
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Fig. 2
DC/DC Converter
A05_S-1WR3 & B05_LS-1WR3 Series
2019.10.15-A/5 Page 4 of 5
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Design Reference
1.Typical application
Input and/or output ripple can be further reduced, by connecting a filter capacitor from the input and/or output terminals to ground as
shown in Fig.3.
Choosing suitable filter capacitor values is very important for a smooth operation of the modules, particularly to avoid start-up problems
caused by capacitor values that are too high. For recommended input and output capacitor values refer to Table 1.
Vin
GND
+Vo
0V
DC
Cin
DC
Cout
Cout
-Vo
Dual
Single
Vin
GND
+Vo
0V
DC
Cin
DC
Cout
Fig. 3
Recommended capacitive load value table (Table 1)
Vin
(VDC)
Cin
(µF)
Single Vout
(VDC)
Cout
(µF)
Dual Vout
(VDC)
Cout
(µF)
5
4.7
3.3/5
10
±5
4.7
--
--
9/12
2.2
±9/±12
1
--
--
15/24
1
±15/±24
0.47
2. EMC (CLASS B) compliance circuit
Fig. 4
EMC recommended circuit value table (Table 2)
Input
voltage
5VDC
Output voltage (VDC)
3.3/5/9
12/15/24
EMI
C1/C2
4.7µF /25V
4.7µF /25V
CY
--
1nF/4KVDC
VISHAY HGZ102MBP
TDK CD45-E2GA102M-GKA
C3
Refer to the Cout in table 1
LDM
6.8µH
6.8µH
Note: In the case of actual use, the requirements for EMI are high, it is subject to CY .
3. For additional information please refer to DC-DC converter application notes on
www.mornsun-power.com
DC/DC Converter
A05_S-1WR3 & B05_LS-1WR3 Series
2019.10.15-A/5 Page 5 of 5
MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Dimensions and Recommended Layout
Notes:
1. For additional information on Product Packaging please refer to www.mornsun-power.com. Packaging bag number: 58200001;
2. If the product is not operated within the required load range, the product performance cannot be guaranteed to comply with all
parameters in the datasheet;
3. The maximum capacitive load offered were tested at input voltage range and full load;
4. Unless otherwise specified, parameters in this datasheet were measured under the conditions of Ta=25℃, humidity<75%RH with nominal
input voltage and rated output load;
5. All index testing methods in this datasheet are based on our company corporate standards;
6. We can provide product customization service, please contact our technicians directly for specific information;
7. Products are related to laws and regulations: see "Features" and "EMC";
8. Our products shall be classified according to ISO14001 and related environmental laws and regulations, and shall be handled by
qualified units.
Mornsun Guangzhou Science & Technology Co., Ltd.
Address: No. 5, Kehui St. 1, Kehui Development Center, Science Ave., Guangzhou Science City, Huangpu District, Guangzhou, P. R. China
Tel: 86-20-38601850 Fax: 86-20-38601272 E-mail: info@mornsun.cn www.mornsun-power.com