ISOLATED DC/DC CONVERTERS
48 Vdc Input 1.5 Vdc - 12 Vdc / 22 A - 5 A Outputs, 1/16 Brick
Apr. 12, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
xRSB-50T Series
RoHS Compliant
Rev.F
• Isolated
•
•
•
•
•
•
•
Input Under Voltage Lockout
Output Over Voltage Shutdown
OCP/SCP
• Fixed Frequency (600 kHz)
• High Efficiency
• High Power Density
• Low Cost
Over Temperature Protection
Remote On/Off (option)
• Output Voltage Trim
• Basic Insulation
Positive/Negative Remote Sense
Through Hole and SMT (option)
• UL60950-1 Recognized (UL/cUL)
Description
The xRSB-50T series are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will
provide up to 60 W of output power from a nominal 48 Vdc input. These units are designed to be highly efficient
and low cost. Features include remote on/off, over current protection and under voltage lockout. These converters
are provided in an industry standard sixteenth brick package.
Part Selection
Output
Input
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active Low
Model Number
Active High
Voltage
Voltage
1.5 V
1.8 V
2.5 V
3.3 V
5.0 V
12 V
36 V - 75 V
36 V - 75 V
36 V - 75 V
36 V - 75 V
36 V - 75 V
36 V - 75 V
22 A
20 A
18 A
15 A
12 A
5 A
33 W
36 W
45 W
50 W
60 W
60 W
85%
87%
87%
89%
90%
89%
xRSB-50TV5L
xRSB-50TV8L
xRSB-50T02L
xRSB-50T03L
xRSB-50T05L
xRSB-50T12L
xRSB-50TV50
xRSB-50TV80
xRSB-50T025
xRSB-50T033
xRSB-50T050
xRSB-50T120
Notes: 1. Add “G” suffix at the end of the model number to indicate Tray Packaging. Replace”x” with “S” to
indicate SMT package, or “0” to indicate through hole package.
2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
Absolute Maximum Ratings
Parameter
Min
Typ
Max
Notes
Input Voltage (continuous)
-0.3 V
-
80 V
Input Voltage Transient (100 ms)
Remote On/Off
-0.3 V
-0.3 V
-
100 V
18 V
-
-
-
-
I/O Isolation Voltage
Ambient Temperature
Storage Temperature
1500 V
85 °C
125 °C
-40 °C
-55 °C
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com