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

48 V Input 12 V/8.3 A, 5 V/20 A, 3.3 V/25 A, 1.2-2.5 V/30 A Outputs

•

Isolated

•

Output Over Voltage Shutdown

•

High Efficiency

•

OCP/SCP

•

High Power Density

•

Over Temperature Protection

•

Low Cost

•

Remote On/Off

•

Input Under Voltage Lockout

•

Output Voltage Trim

•

Fixed Frequency (285 kHz)

•

Active Low/High (Option)

•

Input Over Voltage Lockout

•

Positive/Negative Remote Sense

•

Basic Isolation

Description

The 0RQB-C0U Series are isolated dc/dc converters that operate from a nominal 48 V source. These units will

provide up to 100 W of output power from a nominal 48 V input. These units are designed to be highly efficient

and low cost. Typical efficiency of 12 V output at 48 V input at full load is 91%. Features include remote on/off,

over current protection and under-voltage lockout. These converters are provided in an industry standard

quarter brick package.

Part Selection

Output

Voltage

Input

Voltage

Max. Output

Current

Max. Output

Power

Typical

Efficiency

Model Number

Active High

Model Number

Active Low

12 V

18 V - 75 V

8.3 A

100 W

91%

0RQB-C0U120

0RQB-C0U12L

5.0 V

18 V - 75 V

20 A

100 W

90%

0RQB-C0U050

0RQB-C0U05L

3.3 V

18 V - 75 V

25 A

82.5 W

90%

0RQB-C0U033

0RQB-C0U03L

2.5 V

18 V - 75 V

30 A

75 W

89.5%

0RQB-C0U025

0RQB-C0U02L

1.8 V

18 V - 75 V

30 A

54 W

85%

0RQB-C0UV80

0RQB-C0UV8L

1.5 V

18 V - 75 V

30 A

45 W

83%

0RQB-C0UV50

0RQB-C0UV5L

1.2 V

18 V - 75 V

30 A

36 W

80%

0RQB-C0UV20

0RQB-C0UV2L

Note:

Add “G” suffix at the end of the model number 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

-

-

2000 V

Ambient Temperature

-40

°C

-

85

°C

Storage Temperature

-55

°C

-

125

°C

Note:

All specifications are typical at nominal input, full load at 25

°C unless noted.

0RQB-C0U Series

RoHS Compliant