VRA_LD-20W Series
20W, 2:1 WIDE INPUT ISOLATED &
REGULATED
Patent Protection
RoHS
DUAL OUTPUT DC-DC CONVERTER
FEATURES
PRODUCT PROGRAM
● Efficiency up to 89%
Input
Output
Rated
Capacitor
Load
Max (3)
(µF)
● Wide input voltage range(2:1)
● Good low and high temperature features
● Output short circuit protection
● Isolation voltage:1500VDC
● Operating temperature:-40℃~+85℃
● Internal SMD construction
● Six-sided metal shield
● Industry standard pinout
● MTBF>1,000,000 hours
● Industrial level specifications
● EMC application
Voltage (VDC)
Efficiency
(%, Typ)
Model
Voltage
(VDC)
Current
(2) (mA)
Nominal Range Max(1)
VRA1205LD-20W
VRA1212LD-20W
VRA1215LD-20W
VRA1224LD-20W
VRA2405LD-20W
VRA2412LD-20W
VRA2415LD-20W
VRA2424LD-20W
VRA4805LD-20W
VRA4812LD-20W
VRA4815LD-20W
VRA4824LD-20W
±5
±12
±15
±24
±5
±2000
±833
±667
±416
±2000
±833
±667
±416
±2000
±833
±667
±416
±4800
±800
±500
±300
±4800
±800
±500
±300
±4800
±800
±500
±300
84
88
88
87
84
89
88
87
85
87
88
87
20
40
80
12
24
48
9~18
18~36
36~75
±12
±15
±24
±5
APPLICATION
±12
±15
±24
VRA_LD-20W series offer 20W of
output, wide input voltage: 9-18VDC,
18-36VDC, 36-75VDC,Dual output, and
features 1500VDC isolation, Under
voltage lockout, over current, over
voltage and short circuit protection. All
models are particularly suited to
tele-communications, industrial, test
equipments power etc.
Note: Add suffix “H” for heat sink mounted, for example VRA2405LD-20WH.
COMMON SPECIFICATIONS
Item
Test conditions
Min.
5
Typ.
Max.
95
85
125
105
300
--
Units
%
Storage Humidity
Operating Temperature
Storage Temperature
--
--
--
--
--
--
--
-40
-55
--
℃
Maximum Case Temp. On working temperature
Lead Temperature
Insulation Voltage
Isolation Resistance
Isolation Capacitance
Switching Frequency
MTBF
1.5mm from case for 10S
--
Test time:1min,Leakage current: < 1mA
VDC
MΩ
1500
1000
MODEL SELECTION
Isolation voltage :500VDC
100kHz/0.1V
--
VRA2405LD-20W
2000
400
--
pF
--
--
--
Rated Power
Package
kHz
100% load, nominal input voltage
MIL-HDBK-217F
--
Output Voltage
Input Voltage
Product Series
1000
--
--
K.hours
Without heatsink
28
--
Weight
g
With heatsink
--
36
--
Cooling
Free air convection
Aluminum Alloy
Case Material
MORNSUN Science & Technology Co.,Ltd.
Address: No. 5, Kehui St. 1, Kehui development
center, Science Ave., Guangzhou Science City,
Luogang district, Guangzhou,P.R.China.
Tel: 86-20-38601850
INPUT SPECIFICATIONS
Item
Test conditions
Min. Typ. Max.
Units
VDC
Models ON
Models OFF
Models ON
Models OFF
Models ON
Models OFF
Nominal Input
(12V)
--
7.8
--
--
--
--
--
--
--
9.0
--
Fax:86-20-38601272
E-mail: info@mornsun.cn
Http://www.mornsun-power.com
17.8
--
Nominal Input
(24V)
Under Voltage
Lockout
16.0
--
33.5
--
Nominal Input
(48V)
32.0
Input Filter
Pi
Start-up Time
Nominal input& constant resistance load
Models ON
--
10
--
ms
3.5 -12VDC OR Open Circuit
0-1.2VDC
Ctrl(4)
Models OFF
Input current (Models OFF)
--
--
1
mA
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
VRA_LD-20W 2013.06.13-A/3 Page 1 of 4
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