0RQB-Q8S12 Datasheet, PDF (1/10 Pages) Bel Fuse Inc. – ISOLATED DC/DC CONVERTERS

ISOLATED DC/DC CONVERTERS
38 Vdc - 55 Vdc Input, 12 Vdc/40 A Output
Aug. 19, 2011
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
0RQB-Q8S12x RoHS Compliant PRELIMINARY Rev.B
Features
 Isolated
 Input Under-voltage Protection
 High Efficiency
 Output Over-voltage Protection
 Fixed Frequency (300 KHz)  OCP/SCP
 High Power Density
 Over Temperature Protection
 Low Cost
 Remote ON/OFF
 Class 2, Category 2, Isolated DC/DC Converter (refer to IPC-9592)
Applications
 Networking
 Computers and peripherals
 Telecommunications
Description
The 0RQB-Q8S12x is an isolated dc/dc converter that operates from a nominal 50 Vdc source. This converter is
intended to provide isolation and step down to generate a regulated intermediate bus for the purpose of powering
non-isolated Point-of-Load (POL) converters. This unit will provide up to 480 W of output power from a nominal
50 Vdc input.
Part Selection
Output Voltage Input Voltage
12 Vdc
38 Vdc - 55 Vdc
Max. Output Max. Output
Current
Power
40 A
480 W
Typical
Efficiency
96.7%
Model Number
Active Low
0RQB-Q8S12L
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Model Number
Active High
0RQB-Q8S120
Part Number Explanation
0 R QB – Q8 S 12 x
12 3 4 5 67
1---Through hole mount
2---RoHS 6, change “R” to “7” means RoHS 5
3---Series name
4---Series code
5---Input range (38-55V)
6---Output voltage (12V)
7---Option, “x” of the model part number to be 0-9, A-Z, which will represent the special request of
customer.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302  Tel [phone]  Fax [phone]  www.belfuse.com
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