WRD-YS-1W&WRD-YS-2W Series
1W&2W,WIDE INPUT,ISOLATED®ULATED Twin Output DC∕DC Converter
SELECTION GUIDE
Input
Output
Current(mA)
Voltage(VDC)
Efficiency
(%,Typ)
Order code
No-load
Voltage
(VDC)
Nominal
Range
Max.*
Max.
Min.
(mA,Typ)
WRD050505YS-1W
WRD050909YS-1W
WRD051212YS-1W
WRD051515YS-1W
WRD050505YS-2W
WRD050909YS-2W
WRD051212YS-2W
WRD051515YS-2W
WRD120505YS-1W
WRD120909YS-1W
WRD121212YS-1W
WRD121515YS-1W
WRD120505YS-2W *
WRD120909YS-2W *
WRD121212YS-2W *
WRD121515YS-2W *
WRD240505YS-1W
WRD240909YS-1W
WRD241212YS-1W*
WRD241515YS-1W
WRD240505YS-2W
WRD240909YS-2W
WRD241212YS-2W *
WRD241515YS-2W *
WRD480505YS-1W
WRD480909YS-1W*
WRD481212YS-1W*
WRD481515YS-1W*
WRD480505YS-2W
WRD480909YS-2W *
WRD481212YS-2W
WRD481515YS-2W *
5
4.5-9.0
4.5-9.0
4.5-9.0
4.5-9.0
4.5-9.0
4.5-9.0
4.5-9.0
4.5-9.0
9.0-18
9.0-18
9.0-18
9.0-18
9.0-18
9.0-18
9.0-18
9.0-18
18-36
18-36
18-36
18-36
18-36
18-36
18-36
18-36
36-72
36-72
36-72
36-72
36-72
36-72
36-72
36-72
11
11
11
11
11
11
11
11
22
22
22
22
22
22
22
22
40
40
40
40
40
40
40
40
80
80
80
80
80
80
80
80
40
40
40
40
40
40
40
40
20
20
20
20
20
20
20
20
10
10
10
10
10
10
10
10
5
5/5
9/9
100/100
55/55
10/10
5/5
70
71
73
72
67
71
72
73
73
76
78
78
75
77
80
79
76
77
78
77
76
78
80
79
73
75
77
77
75
78
79
78
5
FEATURES
5
12/12
15/15
5/5
42/42
4/4
RoHS compliant
◆
5
33/33
3/3
◆Miniature SIP Package
5
200/200
111/111
83/83
20/20
11/11
8/8
◆Operating temperature: -40℃to+85℃
◆2:1 wide input voltage range
◆UL 94V-0 package material
◆No heatsink required
5
9/9
5
12/12
15/15
5/5
5
67/67
7/7
12
12
12
12
12
12
12
12
24
24
24
24
24
24
24
24
48
48
48
48
48
48
48
48
100/100
55/55
10/10
5/5
9/9
12/12
15/15
5/5
42/42
4/4
◆Industry standard pinout
◆1KVDC isolation
33/33
3/3
200/200
111/111
83/83
20/20
11/11
8/8
◆Continuous Short Circuit Protection
◆Internal SMD construction
9/9
12/12
15/15
5/5
67/67
7/7
MODEL SELECTION
100/100
55/55
10/10
5/5
①
②
③
④
⑤
⑥
⑦
WRD 05 05 05 Y S -1W
9/9
①Product Series
③Output Voltage 1st
⑤Wide Input
②Input Voltage
④Output Voltage 2st
⑥SIP Package
12/12
15/15
5/5
42/42
4/4
33/33
3/3
⑦Rated Power
200/200
111/111
83/83
20/20
11/11
8/8
9/9
APPLICATIONS
12/12
15/15
5/5
The WRD_YS-1W & WRD_YS-2W series are specially
designed for applications where a wide range input
voltage power supplies are isolated from the input
power supply in a distributed power supply system on a
circuit board. These products apply to:
67/67
7/7
100/100
55/55
10/10
5/5
5
9/9
5
12/12
15/15
5/5
42/42
4/4
5
33/33
3/3
1) Where the voltage of the input power supply is wide
range (voltage range ≤2:1);
5
200/200
111/111
83/83
20/20
11/11
8/8
5
9/9
2) Where isolation is necessary between input and output
(Isolation Voltage ≤ 1000VDC);
5
12/12
15/15
5
67/67
7/7
*Input voltage can’t exceed this value, or will cause the permanent damage.
3) Where isolation is necessary between Vout1 and Vout2
(Isolation Voltage ≤ 1000VDC);
4) Where the regulation of the output voltage and the
output ripple noise are demanded.
ISOLATION SPECIFICATIONS
Parameter
Test conditions
Min.
Typ. Max.
Unit
VDC
Flash tested for 1 minute and 1mA max(Vin/Vout)
Isolation test voltage
1000
1000
Test at Viso=500VDC(Vin/Vout)
100KHz,1V
Isolation resistance
Isolation capacitance
MΩ
80
PF
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