ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
0RQB-T0T12x
Features
RoHS Compliant
Rev.C
Isolated
Output Over-Voltage Shutdown
Output Voltage Trim
High Efficiency
High Power Density
Fixed Frequency (250 kHz)
Low Cost
OCP/SCP
Over Temperature Protection
Remote On/Off
Input Under-Voltage Lockout
Basic Insulation
Positive/Negative Remote Sense
Class 1, Category 2, Isolated DC/DC Converter (refer to IPC-9592)
TUV EN60950-1 Recognized (Pending)
UL60950-1 Recognized (UL/cUL) (Pending)
Applications
Networking
Computers and peripherals
Telecommunications
Description
The 0RQB-T0T12X is an isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit will
provide up to 300 W of output power from a nominal 48 Vdc input. This unit is designed to be highly efficient and
low cost. Features include remote on/off, over current protection and under voltage lockout. The converter is
provided in an industry standard quarter brick package.
Part Selection
Output
Input Voltage
Max. Output Max. Output
Typical
Efficiency
Model Number
Active High
Model Number
Active Low
Voltage
Current
Power
12 Vdc
36 Vdc - 75 Vdc
25 A
300 W
95.5%
0RQB-T0T120
0RQB-T0T12L
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation
0 R QB – T0 T 12 0
1
2
3
4
5 6
7
1---Through hole
2---RoHS 6, change “R” to “7” means RoHS 5
3---Series name, 1/4 Brick
4---Series code
5---Input range 48V wide (36-75V)
6---Output voltage 12V
7---Remote sense, active high, change “0” to “L” means active low
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
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