
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
1
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input,
12 Vdc/25 A Output
Jan. 14, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Features
Isolated
Output Over Voltage Shutdown
High Efficiency
Output Voltage Trim
Fixed Frequency (270 kHz)
Over Temperature Protection
High Power Density
SCP/OCP
Input Under Voltage Lockout
Low Cost
Input Over Voltage Lockout
Basic Insulation
Positive/Negative Remote Sense
Remote On/Off
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 0RQ1-T0T12x are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will
provide up to 300 W 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 quarter brick package.
Part Selection
Output Voltage
Input Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active Low
Model Number
Active High
12 Vdc
36 Vdc - 75 Vdc
25 A
300 W
95%
0RQ1-T0T12L
0RQ1-T0T120
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation
0 R Q1 – T0 T 12 L
1 2
3
4 5
6 7
1---Through hole mount
2---RoHS 6, change “R” to “7” means RoHS 5
3---Series name, 1/4 brick
4---Series code
5---Input range (36-75V)
6---Output voltage (12V)
7---Enable, active low, change “L” to “0” means active high
0RQ1-T0T12x
RoHS Compliant
Rev.C