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SRSB-50T12C Datasheet, PDF (1/8 Pages) Bel Fuse Inc. – ISOLATED DC/DC CONVERTERS
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input,
12 Vdc/5 A Output
Apr. 29, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
SRSB-50T12C RoHS Compliant PRELIMINARY Rev.A
Features
 Isolated
 Output Over Voltage Shutdown
 High Efficiency
 Over Temperature Protection
 Fixed Frequency (600 kHz)
 SCP/OCP
 High Power Density
 Basic Insulation
 Input Under Voltage Lockout
 Remote On/Off
 Low Cost

 Class 2, Category 2, Isolated DC/DC Converter (refer to IPC-9592)
 UL60950-1 Recognized (UL/cUL) (Pending)
Applications
 Networking
 Computers and peripherals
 Telecommunications
Description
The SRSB-50T12C is an isolated dc/dc converter that operates from a nominal 48 Vdc source. The unit will
provide up to 60 W of output power from a nominal 48 Vdc input. The 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 sixteenth brick package.
Part Selection
Output Voltage Input Voltage
12 Vdc
36 Vdc - 75 Vdc
Max. Output
Current
5A
Max. Output
Power
60 W
Typical
Efficiency
89%
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation
S R SB – 50 T 12 C
12 3 4 56 7
Model Number
Active Low
SRSB-50T12C
1---Surface Mount
2---RoHS 6, change “R” to “7” means RoHS 5
3---Series name, 1/16 brick
4---Series code
5---Input range (36-75V)
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 201-432-0463  Fax 201-432-9542  www.belfuse.com
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