PRODUCT FEATURES
● Efficiency up to 93%
VRB_LD-50W Series
50W,WIDE INPUT,ISOLATED &
REGULATED SINGLE OUTPUT DIP
PACKAGING, DC-DCCONVERTER
● Ultra wide input range(2:1)
● High and low temperature characteristics
● Output short circuit protection
● Input over- under voltage protection
● Output over current protection
● Output over voltage protection
● 1.5KVDC isolation
● Operating temperature range:
-40℃~+85℃
● Six-sided metal shield
● Industry standard pinout
● Industrial level specifications
● Good EMC performance
● Inverse polarity protection for A2S(chassis
mounting)and A4S(DIN-Rail mounting)
Patent Protected RoHS
PART NUMBER SYSTEM
VRB2405LD-50W
APPLICATION
VRB_LD-50W series offer 50W of output, 18-36VDC,
36-75VDC, single output, and features 1500VDC isolation,
Six-sided metal shield, under over current and short circuit
protection. All models are particularly suited to
tele-communications, industrial, test equipments power etc.
Rated Power
Package
Output Voltage
Input Voltage
Product Series
SELECTION GUIDE
Input Current
(mA)(Typ.)
Reflected
Ripple
Current
Max.
Capacitor
Load
②
Input Voltage(VDC)
Nominal(Range)
Output
Voltage
(VDC)
Output Current (mA)
Efficiency
①
Model
(%, Typ.)
@Max. Load
@Max.
@No
Load
Max.
Min.
(mA,Typ.)
(µF)
Load
1511
50
70
85
85
85
35
45
50
50
50
VRB2403LD-50W
VRB2405LD-50W
VRB2412LD-50W
VRB2415LD-50W
VRB2424LD-50W
VRB4803LD-50W
VRB4805LD-50W
VRB4812LD-50W
VRB4815LD-50W
VRB4824LD-50W
3.3
5
10000
10000
4167
3333
2083
10000
10000
4167
3333
2083
500
500
208
167
104
500
500
208
167
104
27000
18900
3700
2000
1000
27000
18900
3700
2000
1000
91
93
93
93
93
91
93
93
93
93
2240
2240
2240
2240
756
24
(18-36)
40
12
15
24
3.3
5
1120
1120
1120
1120
48
(36-75)
30
12
15
24
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
VRB2405LD-50WHA2S is chassis mounting with heat sink, VRB2405LD-50WA4S is DIN-Rail mounting without heat sink. If the application has a higher
requirement for heat dissipation, you can choose modules with heat sink.
②The efficiency of "A2S" and "A4S" is approx. 2% lower for the protection of inverse polarity.
INPUT SPECIFICATIONS
Item
Test Conditions
24VDC Input
48VDC Input
24VDC Input
48VDC Input
24VDC Input
48VDC Input
Min.
-0.7
-0.7
--
Typ.
--
Max.
50
Unit
Input Surge Voltage(1sec. max.)
--
100
18
--
Start-up Voltage
VDC
--
--
36
Input Under Voltage
Protection
16
--
--
Under Voltage Shutdown
32
--
--
The copyright and authority for the interpretation of the products are reserved by MORNSUN
VRB_LD-50W
3013.05.21-A/2
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