WRA_LT-2W & WRB_LT-2W Series
2W, WIDE INPUT, ISOLATED & REGULATED
SINGLE/DUAL OUTPUT DC/DC CONVERTER
multi-country patent protection RoHS
FEATURES
PRODUCT PROGRAM
Wide (2:1) input range
Operating temperature: -40°C ~ +85°C
1500VDC isolation
No heat sink required
Internal SMD construction
MTBF>1,000,000 hours
Short circuit protection(Automatic recovery)
Industry standard pinout
RoHS Compliance
Input
Output
Part
Number
Efficiency
(%, Typ.)
Voltage (VDC)
Current (mA)
Min.
Voltage
(VDC)
Nominal Range Max.*
Max.
±200
±83
±67
500
400
222
167
133
±200
±83
±67
500
400
222
167
133
WRA1205LT-2W
WRA1212LT-2W
WRA1215LT-2W
WRB1203LT-1W6
WRB1205LT-2W
WRB1209LT-2W
WRB1212LT-2W
WRB1215LT-2W
WRA2405LT-2W
WRA2412LT-2W
WRA2415LT-2W
WRB2403LT-1W6
WRB2405LT-2W
WRB2409LT-2W
WRB2412LT-2W
WRB2415LT-2W
±5
±12
±15
3.3
5
±20
±8
±7
50
40
22
16
13
±20
±8
±7
50
40
22
16
13
74
78
80
70
74
76
78
79
74
78
80
72
76
78
80
80
12
9-18
22
9
12
15
±5
±12
±15
3.3
5
APPLICATIONS
The WRA_LT-2W & WRB_LT-2W 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:
24
18-36
40
1) Where the voltage of the input power supply is
wide range(voltage range ≤2:1);
9
12
15
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.
*Input voltage can’t exceed this value, or will cause the permanent damage.
COMMON SPECIFICATIONS
MODEL SELECTION
WRB2412LT-2W
Item
Test conditions
Min.
Typ.
Max.
95
Units
%
Storage humidity range
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
Short circuit protection
Cooling
Rated Power
Package Style
Output Voltage
85
-40
-55
125
Input Voltage
°C
Product Series
15
1.5mm from case for 10 seconds
245
Continuous, automatic recovery
Free air convection
MORNSUN Science & Technology co.,Ltd.
Address: 2th floor 6th building, Huangzhou Industrial
District, Guangzhou, China
Package material
MTBF
Epoxy Resin (UL94-V0)
Tel: 86-20-38601850
Fax: 86-20-38601272
1000
K hours
g
Http://www.mornsun-power.com
Weight
5.2
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice.
WRA_LT_2W & WRB_LT_2W A/2-2009 Page 1 of 3