DC/DC Converter
URA_YMD-20WR3 Series
20W, Ultra wide input isolated & regulated dual output ,
DIP packaging, DC-DC converter
FEATURES
Ultra wide input voltage range (4:1)
High efficiency up to 90%
No-load power consumption as low as 0.24W
Isolation voltage :1.5K VDC
Input under-voltage protection, output short circuit,
over-current, over-voltage protection
Operating temperature range: -40℃ to +105℃
A2S (wring mounting) and A4S (TS35 rail mounting)
products featuring anti-reverse connection for
input
International standard pin-out
Meets EN62368 standards (Pending)
Patent Protection RoHS
URA_YMD-20WR3 series are isolated 20W DC-DC products with 4:1 input voltage. They feature efficiency up to 90%, 1500VDC isolation,
operating temperature of -40℃ to +105℃, input under-voltage protection, output over-voltage, over-current, short circuit protection, which
make them widely applied in industrial control, electric power, instruments and communication fields. And extension package A2S and A4S
also enable them with reverse voltage protection.
Selection Guide
④
Efficiency (%
,Min./Typ.)
Input Voltage (VDC)
②
Output
Max. Capacitive
①
Certification
Part No.
⑤
Nominal
(Range)
Output Voltage
(VDC)
Output Current (mA)
③
Load (µF)
Max.
(Max./Min.)
±2000
±833
@ Full Load
URA2405YMD-20WR3
URA2412YMD-20WR3
URA2415YMD-20WR3
URA2424YMD-20WR3
URA4805YMD-20WR3
URA4812YMD-20WR3
URA4815YMD-20WR3
URA4824YMD-20WR3
±5
85/87
88/90
88/90
87/89
84/86
88/90
88/90
88/90
2000
800
600
300
2000
800
600
300
±12
±15
±24
±5
24
40
(9-36)
±667
±417
CE
Pending
±2000
±833
±12
±15
±24
48
80
(18-75)
±667
±417
Notes：
1
Part No. with suffix of “A2S” means chassis mounting and suffix of “A4S” means DIN-Rail mounting (e.g. URA2405YMD-10WR3A2S means chassis mounting;
URA2405YMD-10WR3A4S means DIN-Rail mounting);
2
The minimum input voltage and starting voltage of A2S (wiring) and A4S (rail) Model are 1VDC higher than those of DIP package due to input reverse polarity
protection function;
3
4
Absolute maximum rating without damage on the converter, but it isn't recommended;
Efficiency is measured In nominal input voltage and rated output load;A2S (wiring) and A4S (rail) Model due to input reverse polarity protection, minimum
efficiency greater than Min.-2 is qualified;
5
The capacitive loads of positive and negative outputs are identica.
Input Specifications
Item
Operating Conditions
Min.
--
Typ.
Max.
Unit
mA
24VDC nominal input series, nominal input voltage
48VDC nominal input series, nominal input voltage
958/10
--/20
--/11
--
Input Current
(full load / no-load)
--
969/5
Reflected Ripple Current
Surge Voltage (1sec. max.)
--
-0.7
-0.7
--
30
--
24VDC nominal input series
48VDC nominal input series
24VDC nominal input series
48VDC nominal input series
24VDC nominal input series
48VDC nominal input series
50
--
100
9
VDC
VDC
--
Starting Voltage
--
--
18
6.5
5.5
12
--
--
Input Under-voltage Protection
15.5
2018.01.15-A/0
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