ISOLATED DC/DC CONVERTERS
18 Vdc - 62.5 Vdc Input 3.3 Vdc /12.1 A Output
0RCY-50U03x
RoHS Compliant
Rev.E
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Isolated
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Output Over-Voltage Shutdown
OCP/SCP
High Efficiency
High Power Density
Over Temperature Protection
Low Cost
Fixed Frequency (330 kHz)
Input Under-Voltage Lockout
Input Over-Voltage Lockout
Ultra Wide Input Range:
18 Vdc - 62.5 Vdc
Output Voltage Trim
Positive/Negative Remote Sense
Basic Insulation
Remote On/Off
TUV Certified to EN 60950-1
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UL60950-1 Recognized (UL/cUL)
Description
The 0RCY-50U03x is isolated dc/dc converter that operates from a wide input range (18 Vdc - 62.5 Vdc) and can
cover both 24 Vin and 48 Vin input range. This unit will provide up to 40 W of output power. The unit is designed
to be highly efficient and low cost. Features include remote on/off, over current protection, over voltage shut down,
over temperature protection and under-voltage lockout. This converter is provided in an industry standard 1/8
brick package.
Part Selection
Output
Input Voltage
Max. Output Max. Output
Typical
Efficiency
Model Number
Active High
Model Number
Active Low
Voltage
Current
Power
3.3 Vdc
18 Vdc - 62.5 Vdc
12.1 A
40 W
90.5%
0RCY-50U033
0RCY-50U03L
Notes: 1.Change the last character to “C” to indicate 0.35’’ length of pin standoff and active low.
2. Add “G” suffix at the end of the model number to indicate Tray Packaging.
3. 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
Min
-0.3 V
-0.3 V
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Typ
Max
80 V
Notes
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18 V
I/O Isolation Voltage
Ambient Temperature
Storage Temperature
1500 V
85 °C
125 °C
-40 °C
-55 °C
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage
18 V
24 V/48 V
62.5 V
Input Current (full load)
Vin=18 V
Vin=62.5 V
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3.2 A
1.0 A
Input Current (no load)
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-
100 mA
10 mA
160 mA
15 mA
Remote Off Input Current
Tested with simulated source impedance of 10
uH, 5 Hz to 20 MHz; use a 0.47uF/100 V
ceramic capacitor and a 100uF/100 V
electrolytic capacitor with ESR=1 ohm max, at
200KHz@25°C.
Input Reflected Ripple Current
(rms)
2 mA
5 mA
Input Reflected Ripple Current
(pk-pk)
-
10 mA
20 mA
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com