
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input
3.3 Vdc /15 A Output
Isolated
Output Over-Voltage Shutdown
High Efficiency
OCP/SCP
High Power Density
Over Temperature Protection
Fixed Frequency (260 kHz)
Low Cost
Input Under-Voltage Lockout
Output Voltage Trim
Input Over-Voltage Lockout
Ultra Wide Input Range:
18 Vdc - 75 Vdc
Positive/Negative Remote Sense
Basic Insulation
Remote On/Off
UL60950-1 (UL/cUL) Recognized
(Pending)
Description
The 0RCY-60U03x is part of the isolated dc/dc converters that operate from a wide input range (18 Vdc - 75 Vdc)
and can cover both 24 Vin and 48 Vin input range. These units will provide up to 49.5 W of output power. They
are 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. These converters are provided in an
industry standard 1/8 brick package.
Part Selection
Output
Voltage
Input Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active High
Model Number
Active Low
3.3 Vdc
18 Vdc - 75 Vdc
15 A
49.5 W
90%
0RCY-60U033
0RCY-60U03L
Notes: 1. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
2. Add “G” suffix at the end of the model numbers to indicate Tray Packaging.
Absolute Maximum Ratings
Parameter
Min
Typ
Max
Notes
Input Voltage (continuous)
-0.3 V
-
80 V
Remote On/Off
-0.3 V
-
18 V
I/O Isolation Voltage
-
1500 V
Ambient Temperature
-40
°C
-
85
°C
Storage Temperature
-55
°C
-
125
°C
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage
18 V
24 V/48 V
75 V
Input Current (full load)
Vin=18 V
Vin=75 V
-
3.3 A
0.76 A
-
Input Current (no load)
-
65 mA
100 mA
Remote Off Input Current
-
10 mA
15 mA
Input Reflected Ripple Current
(rms)
7 mA
10 mA
Input Reflected Ripple Current
(pk-pk)
-
30 mA
50 mA
Tested with simulated source impedance
of 10 uH, 5 Hz to 20 MHz; use a 1
uF/100 V ceramic cap and a 100 uF/100
V electrolytic cap with ESR = 1 ohm max.
at 200 kHz at 25
°C.
0RCY-60U03x
RoHS Compliant
Rev. C