WRA_LT-3W & WRB_LT-3W Series
3W, WIDE INPUT, ISOLATED & REGULATED
SINGLE/DUAL OUTPUT DC/DC CONVERTER
Patent Protection RoHS
PRODUCT PROGRAM
FEATURES
Input
Output
● 2:1 Wide input voltage range
● Operating temperature: -40°C ~ +85°C
● 1500VDC isolation
Part
Number
Efficiency
(%, Typ.)
Voltage (VDC)
Current (mA)
Voltage
(VDC)
Nominal Range
Max**
Max.
±300
±125
±100
600
Min.
±30
±13
±10
60
● No heatsink required
WRA0505LT-3W*
WRA0512LT-3W*
WRA0515LT-3W
WRB0505LT-3W
WRB0512LT-3W*
WRB0515LT-3W
WRA1205LT-3W *
WRA1212LT-3W
WRA1215LT-3W
WRB1205LT-3W
WRB1212LT-3W
WRB1215LT-3W *
WRA2405LT-3W
WRA2412LT-3W
WRA2415LT-3W
WRB2405LT-3W
WRB2412LT-3W
WRB2415LT-3W
WRA4805LT-3W
WRA4812LT-3W *
WRA4815LT-3W *
WRB4805LT-3W
WRB4812LT-3W
WRB4815LT-3W
*Designing.
±5
±12
±15
5
72
74
75
72
74
75
76
79
79
74
79
79
76
79
79
76
79
79
76
79
79
76
79
79
● Internal SMD construction
● MTBF>1,000,000 hours
● Short circuit protection
(automatic recovery)
● Industry standard pinout
● RoHS Compliance
5
4.5-9
11
12
15
±5
±12
±15
5
250
25
200
20
±300
±125
±100
600
±30
±13
±10
60
12
24
48
9-18
22
40
80
APPLICATIONS
12
15
±5
±12
±15
5
250
25
The WRA_LT-3W & WRB_LT-3W series are
specially designed for applications where a wide
range input voltage power supplies are isolated
from the input power supply in a distributed
power supply system on a circuit board.
These products apply to:
200
20
±300
±125
±100
600
±30
±13
±10
60
18-36
36-72
1) Where the voltage of the input power supply is
wide range(voltage range ≤ 2:1);
12
15
±5
±12
±15
5
250
25
200
20
2) Where isolation is necessary between input
and output (isolation voltage ≤1500VDC);
3) Where the regulation of the output voltage and
the output ripple noise are demanded.
±300
±125
±100
600
±30
±13
±10
60
12
15
250
25
200
20
MODEL SELECTION
**Input voltage can’t exceed this value, or will cause the permanent damage.
WRB2412LT-3W
COMMON SPECIFICATIONS
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
Item
Test conditions
Min.
Typ.
15
Max.
Units
%
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
Short circuit protection
Cooling
95
85
-40
-55
125
°C
1.5mm from case for 10 seconds
300
Continuous, automatic recovery
Free air convection
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: 86-20-28203030
Package material
MTBF
Epoxy Resin (UL94-V0)
1000
k hours
g
Fax:86-20-28203068
Weight
5.2
Http://www.mornsun-power.com
The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
WRA_LT_3W & WRB_LT_3W B/3-2010 Page 1 of 3