FEATURES
●4:1 Ultra wide input voltage range
●Small footprint,20W,1×1inch
●Efficiency up to 90%
●1.5KVDC isolation
●Short circuit protection(automatic recovery)
URB_YMD-20W Series
20W,ULTRA WIDE INPUT,ISOLATED &
REGULATED SINGLE OUTPUT DIP
PACKAGING, DC-DC CONVERTER
●Over load protection
●Over temperature protection
●Input under voltage protection
●Output over voltage protection
●Metal shielding package
●Meet CISPR22/EN55022 CLASS A
●Low temperature rise, Industrial level
specifications
●Inverse polarity protection for A2S(chassis
mounting)and A4S(DIN-Rail mounting)
Patent Protected RoHS
PART NUMBER SYSTEM
APPLICATION
URB2405YMD-20W
URB_YMD-20W series are applied to the data transmission
device, battery-powered equipment, communications equipment,
distributed power systems, mixed analog / digital systems, remote
control system, industrial robot system and wide input voltage
occasions.
Rated Power
Package
Output Voltage
Input Voltage
Product Series
SELECTION GUIDE
Input Current
(mA)(Typ.)
Efficiency
(%, Typ.)
@Max.
Input Voltage(VDC)
Output
Output Current (mA)
Reflected
Ripple
Current
(Ma,Typ.)
Max.
Capacitive
Load(µF)
①
Voltage
Nominal
(Range)
Model
@Max.
Load
@No
Load
②
(VDC)
Max.
Min.
③
Max
Load
780
925
925
925
390
463
463
463
50
60
60
60
25
30
30
30
URB2403YMD-20W
URB2405YMD-20W
URB2412YMD-20W
URB2415YMD-20W
URB4803YMD-20W
URB4805YMD-20W
URB4812YMD-20W
URB4815YMD-20W
3.3
5
5000
4000
1667
1333
5000
4000
1667
1333
250
200
84
10300
5400
1200
750
87
90
90
90
88
90
90
90
24
(9-36)
40
12
15
3.3
5
67
30
250
200
84
10300
5400
1200
750
48
(18-75)
80
12
15
67
Note: ① Series with suffix “H” are heat sink mounting, series with suffix "A2S" are chassis mounting, with suffix "A4S" are DIN-Rail mounting, for example
URB2405YMD-20WHA2S is chassis mounting with heat sink, URB2405YMD-20WA4S is DIN-Rail mounting without heat sink. If the application has a higher
requirement for heat dissipation, you can choose modules with heat sink.
②Absolute maximum rating without damage on the converter, but it isn't recommended.
③The efficiency of "A2S" and "A4S" is approx. 2% lower for the protection of inverse polarity.
INPUT SPECIFICATIONS
Item
Test Conditions
24VDC input
48 VDC input
24VDC input
48 VDC input
24VDC input
48 VDC input
Min.
-0.7
-0.7
--
Typ.
--
Max.
50
100
9
Unit
Input Surge Voltage (1sec.max.)
--
--
Start-up Voltage
VDC
--
--
18
--
6
--
Under Voltage Shutdown
15
--
--
The copyright and authority for the interpretation of the products are reserved by MORNSUN
URB_YMD-20W
2013.05.21-A/2
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