Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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.
• Isolated • Input Under Voltage Lockout
• Fixed Frequency (600 kHz) • Output Over Voltage Shutdown
• High Efficiency • OCP/SCP
• High Power Density • Over Temperature Protection
• Low Cost • Remote On/Off (option)
• Output Voltage Trim • Positive/Negative Remote Sense
• Basic Insulation • 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
Voltage
Input
Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active Low
Model Number
Active High
1.5 V 36 V - 75 V 22 A 33 W 85% xRSB-50TV5L xRSB-50TV50
1.8 V 36 V - 75 V 20 A 36 W 87% xRSB-50TV8L xRSB-50TV80
2.5 V 36 V - 75 V 18 A 45 W 87% xRSB-50T02L xRSB-50T025
3.3 V 36 V - 75 V 15 A 50 W 89% xRSB-50T03L xRSB-50T033
5.0 V 36 V - 75 V 12 A 60 W 90% xRSB-50T05L xRSB-50T050
12 V 36 V - 75 V 5 A 60 W 89% xRSB-50T12L 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) -0.3 V 100 V
Remote On/Off -0.3 V - 18 V
I/O Isolation Voltage - - 1500 V
Ambient Temperature
-40 °C
-
85 °C
Storage Temperature
-55 °C
-
125 °C
xRSB-50T Series RoHS Com
liant Rev.F