ISOLATED DC/DC CONVERTERS
48 VDC Input 12 VDC/8.5 A Output, 1/16 Brick
SRCA-08S12L
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Isolated
Fixed Frequency
High Efficiency
High Power Density
Low Cost
RoHS Compliant
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Rev.B
Input Under Voltage Lockout
Input Over Voltage Shutdown
OCP/SCP
Over Temperature Protection
Remote On/Off
Description
The SRCA-08S12L is an isolated DC/DC converter that operates from a nominal 48 VDC source. These
converters use a half bridge power train to provide isolation and step down. These units will provide up to 100 W
of 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 sixteenth-brick package.
Part Selection
Output
Voltage
12 V
Input Voltage
36 V - 55 V
Max. Output
Current
8.5 A
Max. Output
Power
100 W
Typical
Efficiency
95%
Model Number
Active Low
SRCA-08S12L
Notes:
1. Add “G” suffix at the end of the model number to indicate Tray Packaging.
2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
Absolute Maximum Ratings
Parameter
Input Voltage (continuous)
Remote On/Off
I/O Isolation Voltage
Ambient Temperature
Storage Temperature
Min
-0.3 V
-0.3 V
-
-40
°C
-40
°C
Typ
-
-
500 V
-
-
Max
80 V
18 V
-
85
°C
125
°C
Notes
Input Specifications
Parameter
Input Voltage
Input Current (full load)
Input Current (no load)
Remote Off Input Current
Input Reflected Ripple Current (pk-pk)
Input Reflected Ripple Current (rms)
I t Inrush Current Transient
Input Over Voltage Protection Threshold
Turn On Voltage Threshold
Turn Off Voltage Threshold
2
Min
36 V
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-
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-
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-
Typ
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4 mA
40 mA
10 mA
0.039 A s
59 V
35 V
30 V
2
Max
55 V
2.5 A
120 mA
10 mA
100 mA
30 mA
0.062 A s
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-
-
2
Notes
Active Low
Tested with simulated source
impedance of 10 uH, 5 Hz to 20
MHz; use a 100 uF/100 V
electrolytic capacitor and 1 uF/100
V ceramic capacitor at the input.
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
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Tel 201-432-0463
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Fax 201-432-9542
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www.belfuse.com
BEL [ BEL FUSE INC. ]
