Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302

3

ISOLATED DC/DC CONVERTERS

18 Vdc - 75 Vdc Input

12 Vdc /7 A Output

Apr. 28, 2011

Bel Power Inc., a subsidiary of Bel Fuse Inc.

Output Specifications (continued)

Parameter

Min

Typ

Max

Unit

Notes

Output Current Range

0

-

7

A

Output DC Current Limit

7.7

-

11

A

Vin=48 V, in Hiccup Mode.

Short Circuit Surge Transient

-

3

5

A

Rise Time

5

10

15

mS

-

20

25

mS

Ton(Enable from Vin)

Turn on Time

-

20

25

mS

Ton(Enable from ON/OFF)

Overshoot at Turn on

-

0

3

%

Output Capacitance

0

-

1000

uF

Transient Response

Overshoot

-

300

400

mV

75% ~ 50%

Max Load

Settling Time

-

400

600

uS

Overshoot

-

300

400

mV

50% ~ 75%

Max Load

Settling Time

-

400

600

uS

di/dt=0.1 A/us, Vin=24 Vdc, Ta=25 °C,

with a 0.1 µF ceramic cap and a 10 uF

tantalum cap at output.

Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated.

General Specifications

Parameter

Min

Typ

Max

Unit

Notes

Efficiency

Vin=24 V

Vin=48 V

90

90.5

91.5

92

-

-

%

%

Measured at normal Vin, full load.

Switching Frequency

240

258

280

kHz

Isolation Capacitance

-

1500

-

pF

Remote Sense Compensation

-

-

10

%

The total voltage increased by trim

and remote sense should not exceed

15%Vo.

Output Voltage Trim Range

80

-

110

%

Over Temperature Protection

-

125

-

C

Over Voltage Protection

-

-

13.8

V

Vin=48 V, full load, in Hiccup mode.

MTBF

1,867,232

hours

Calculated Per Bell Core SR-332

C)

Dimensions

Inches (L × W × H)

Millimeters (L × W × H)

2.30 x 0.896 x 0.49

58.42 x 22.76 x 12.47

-

0RCY-60U120 & 0RCY-60U12L

Dimensions

Inches (L × W × H)

Millimeters (L × W × H)

2.30 x 0.900 x 0.45

58.42 x 22.86 x 11.50

-

0RCY-60U12B

Weight

-

31.2

-

g

0RCY-60U120 & 0RCY-60U12L