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0RQB-T0T12X Datasheet, PDF (1/18 Pages) Bel Fuse Inc. – ISOLATED DC/DC CONVERTERS
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
RoHS Compliant
Rev.C
Features
 Isolated
 Output Over-Voltage Shutdown
 High Efficiency
 Output Voltage Trim
 High Power Density
 OCP/SCP
 Fixed Frequency (250 kHz)
 Over Temperature Protection
 Low Cost
 Remote On/Off
 Input Under-Voltage Lockout
 Positive/Negative Remote Sense
 Basic Insulation
 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
Voltage
Input Voltage
12 Vdc
36 Vdc - 75 Vdc
Max. Output
Current
25 A
Max. Output
Power
300 W
Typical
Efficiency
95.5%
Model Number
Active High
0RQB-T0T120
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Model Number
Active Low
0RQB-T0T12L
Part Number Explanation
0 R QB – T0 T 12 0
12 3 4 56 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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