FEATURES
● Efficiency up to 90%
VRA_LD-20WR2 &
● 2:1 wide input voltage range
● Output over voltage,over current and Input
under voltage protection,short circuit protection
● 1.5KVDC isolation
VRB_LD-20WR2 SERIES
20W,WIDE INPUT, ISOLATED & REGULATED
DUAL/SINGLE OUTPUT DC-DC CONVERTER
● Operating temperature range:
-40°C ~ +85°C
● Six-sided metal shield
● Industry standard pinout
● Meet CISPR22/EN55022 CLASS A
● Meet EN60950
● A2S(chassis mounting)and A4S(DIN-Rail
mounting ) have the function of input reverse
connection preventing
Patent Protected RoHS
APPLICATION
PART NUMBER SYSTEM
VRA_LD-20WR2 & VRB_LD-20WR2 series are applied to
wide voltage range input situation such as data transmission
device, battery power supply device, telecommunication device
,distributed power supply system, remote control system,
industrial robot system etc.
VRA1205LD-20WR2
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
SELECTION GUIDE
④
Input
Voltage(VDC)
Output Current
(mA)
Reflected
Ripple
Current
(mA,typ.)
Efficiency
(%, typ.)
@Max.
Load
Input Current (mA)(typ.)
Output
Voltage
(VDC)
Max.
①
Approval
Model
Capacitive
Nominal
(Range)
@Max.
@No Load
Load
③
②
Load (µF)
Max.
Max. Min.
±2000 ±100
VRA1205LD-20WR2
VRA1212LD-20WR2
VRA1215LD-20WR2
VRA1224LD-20WR2
VRB1203LD-20WR2
VRB1205LD-20WR2
VRB1212LD-20WR2
VRB1215LD-20WR2
VRB1224LD-20WR2
VRA2405LD-20WR2
VRA2412LD-20WR2
VRA2415LD-20WR2
VRA2424LD-20WR2
VRB2403LD-20WR2
VRB2405LD-20WR2
VRB2412LD-20WR2
VRB2415LD-20WR2
VRB2424LD-20WR2
±5
±12
±15
±24
3.3
5
1938
1895
1895
1895
1600
1872
1872
1872
1853
969
30
25
25
20
65
60
25
25
30
25
20
20
20
40
40
20
20
20
4800
800
86
88
88
88
86
89
89
89
90
86
88
88
88
86
90
89
90
90
±834
±667
±417
5000
4000
1667
1333
834
±42
±33
±21
250
200
84
500
300
12
20
18700
9600
1600
1000
470
(9-18)
12
15
67
24
42
30
CE
±5
±2000 ±100
4800
800
±12
±15
±24
3.3
5
±834
±667
±417
5000
4000
1667
1333
834
±42
±34
±21
250
200
84
948
948
500
948
300
24
40
800
18700
9600
1600
1000
470
(18-36)
926
12
937
15
67
926
24
42
916
The copyright and authority for the interpretation of the products are reserved by MORNSUN
VRA_LD-20WR2 & VRB_LD-20WR2 2013.11.29-A/4 Page 1of 9