FEATURES
URA_LD-15W & URA_LD-20W SERIES
15/20W, 4:1ULTRA WIDE INPUT ISOLATED &
REGULATEDDUAL OUTPUT DC-DC CONVERTER
● Efficiency up to 88%
● Ultra wide input range (4:1)
● High and low temperature characteristics
● Output short circuit protection
●1500VDC isolation
● Operating temperature range:
-40℃~+85℃
● Six-sided metal shield
● Industry standard pinout
● MTBF>1,000,000 hours
● Industrial level specifications
● EMC application
Patent Protection RoHS
PART NUMBER SYSTEM
URA2405LD-20W
APPLICATIONS
URA_LD-15W & URA_LD-20W series offer 15W &
20W of output, ultra wide input voltage: 9-36VDC,
18-75VDC, dual output, and features 1500VDC isolation,
under voltage lockout, over current, over voltage and short
circuit protection. All models are particularly suitable for
industrial, telecommunication, electric power, test
equipments applications.
Rated Power
Package
Output Voltage
Input Voltage
Product Series
SELECTION GUIDE
Input Current
(mA)(typ.)
Reflected
Ripple
Current
(mA,typ.)
Input Voltage(VDC) Output
Output Current (mA)
Max.
Efficiency
(%, typ.)
Model
Voltage
(VDC)
Max*
Capacitive
Load# (µF) @Max. Load
Nominal
@Max.
Max.
Min.
@No Load
(Range)
Load
719
7
17
29
7
URA2405LD-15W
URA2412LD-15W
URA2415LD-15W
URA2405LD-20W
URA2412LD-20W
URA2415LD-20W
URA4805LD-15W
URA4812LD-15W
URA4815LD-15W
URA4805LD-20W
URA4812LD-20W
URA4815LD-20W
±5
±1500
±625
±500
±2000
±833
±667
±1500
±625
±500
±2000
±833
±667
±150
±62.5
±50
4800
800
86
87
87
84
87
87
84
87
87
85
87
88
700
715
953
933
932
364
350
352
481
470
480
±12
500
±15
24
(9-36)
30
40
±5
±200
±83.3
±66.7
±150
±62.5
±50
4800
800
11
29
6
±12
±15
±5
500
4800
800
11
15
7
±12
±15
500
48
(18-75)
200
80
±5
±200
±83.3
±66.7
4800
800
8
±12
±15
8
500
Note:1.*Input voltage can’t exceed this value, or will cause the permanent damage.
2. # For each output.
INPUT SPECIFICATIONS
Item
Test Conditions
Min.
-0.7
-0.7
--
Typ.
--
Max.
Unit
24VDC Input Models
48VDC Input Models
24VDC Input Models
48VDC Input Models
24VDC Input Models
48VDC Input Models
Nominal input& constant resistance load
Models ON
50
100
9
Input Surge Voltage (1000 ms)
--
8.7
17.6
--
Start-up Voltage
VDC
18
--
--
9
18
--
Under Voltage Shutdown
Start-up Time
--
--
ms
--
10
3.5 -12VDC or open circuit
Ctrl*
0-1.2VDC
Models OFF
Input current (Models OFF)
--
--
1
mA
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URA_LD-15W&URA_LD-20W 2013.06.13-B/1 Page 1 of 6