WRB-YT-1W Series
1W, WIDE INPUT, ISOLATED & REGULATED SINGLE OUTPUT DC/DC CONVERTER
SELECTION GUIDE
Input
Input
Current
(mA)
Output
Current
(mA)
Effciency
(%)
Output
Voltage
(VDC)
Voltage
(VDC)*
MTTF
order code
(kHrs)
Nominal
5
0%Load
25
30
60
10
12
15
6
100%Load
100%Load
200
83
Min.
Typ.
62
67
63
73
66
67
70
68
67
05
12
15
05
12
15
05
12
15
60.5
63.5
60.5
68.0
65.0
65.0
65.0
65.0
65.0
WRB0505YT-1W
WRB0512YT-1W
WRB0515YT-1W
WRB1205YT-1W
WRB1212YT-1W
WRB1215YT-1W
WRB2405YT-1W
WRB2412YT-1W
WRB2415YT-1W
320
300
320
110
130
120
120
60
921
1118
869
FEATURES
◆Efficiency from 60.5%
5
66
5
◆Operating temperature: -40°C ~ +85°C
◆1000VDC isolation
200
83
12
12
12
24
24
24
1281
1175
1283
1379
1278
1223
◆UL94V-0 package material
◆No external component required
◆Internal SMD construction
◆MTBF>1,400,000 hours
◆ RoHS Compliance
66
200
83
8
66
9
60
* Input voltage can not exceed this value, or will cause the permanent damage.
◆ Lead frame technology
◆5V,12V&24V Input
COMMON SPECIFICATIONS
◆5V,12V&15V Output
Item
Test conditions
Min.
Typ.
Max.
Units
◆ Power density 0.7W/cm3
◆ Multi layer ceramic capacitors
WRB05XXYT-1W types
10V
Input voltage
WRB12XXYT-1W types
WRB24XXYT-1W types
See graph
17.5V
40V
Minimum load
MODEL SELECTION
⑥
WRB 12 05 Y T -1W
Lead temperature
1.5mm from case for 10 seconds
245
℃
℃
①
②
③
④
⑤
Cooling
Free air convection
Free air convection
15s
①Product Series
③Output Voltage
②Input Voltage
④Wide (2:1) Input Range
Short circuit protection
Case material
Epoxy Resin (UL94-V0)
⑤SMD14 Package Style ⑥Rated Power
Case temperature rise above ambient
30
Operation
Storage
See derating graphs
-40
-50
85
130
DESCRIPTION
All specifications typical at TA=25ºC, nominal input voltage and rated output current unless otherwise specified.
The WRB-YT-1W 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:
INPUT CHARACTERISTICS
1) Where the voltage of the input power supply is wide
range (voltage range ≤2:1);
Item
Test conditions
Min.
Typ.
Max.
Units
2) Where isolation is necessary between input and output
(Isolation Voltage ≤1000VDC);
Continuous operation, 5V input types
4.5
5
9
V
voltage range
Continuous operation, 12V input types
Continuous operation, 24V input types
9
12
24
18
36
V
V
3) Where the regulation of the output voltage and the
output ripple noise are demanded.
18
See graph
12
6
mA p-p
mA p-p
Reflected ripple current
1.5mm from case for 10 seconds
Free air convection
6
mA p-p
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