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Model

Number

Input

Reflected

Ripple

Current

(mA, Typ)

Output

Efficiency

(%, Typ)

Capacitive

Load

(µF Max)

Fuse Rating

Slow-Blow

(mA)

Voltage

(VDC)

Current

(mA, Max)

Current

(mA, Min)

Nominal

Range

Full-Load No-Load

MB2012SMRW-05RI4

12

9.0 - 18.0

1,938

20

100

5.0

4,000

0.0

86

6,800

4,000

MB2012SMRW-12RI4

12

9.0 - 18.0

1,876

20

100

12.0

1,670

0.0

89

1,160

4,000

MB2012SMRW-15RI4

12

9.0 - 18.0

1,893

20

100

15.0

1,333

0.0

88

750

4,000

MB2012SMRW-24RI4

12

9.0 - 18.0

1,888

20

100

24.0

840

0.0

89

295

4,000

MB2012DMRW-12RI4

12

9.0 - 18.0

1,888

20

100

±12.0

±840

0.0

89

590

4,000

MB2012DMRW-15RI4

12

9.0 - 18.0

1,882

20

100

±15.0

±670

0.0

89

380

4,000

MB2024SMRW-05RI4

24

18.0 - 36.0

947

15

50

5.0

4,000

0.0

88

6,800

2,000

MB2024SMRW-12RI4

24

18.0 - 36.0

938

15

50

12.0

1,670

0.0

89

1,160

2,000

MB2024SMRW-15RI4

24

18.0 - 36.0

936

15

50

15.0

1,333

0.0

89

750

2,000

MB2024SMRW-24RI4

24

18.0 - 36.0

933

15

50

24.0

840

0.0

90

295

2,000

MB2024DMRW-12RI4

24

18.0 - 36.0

933

15

50

±12.0

±840

0.0

90

590

2,000

MB2024DMRW-15RI4

24

18.0 - 36.0

931

15

50

±15.0

±670

0.0

90

380

2,000

MB2048SMRW-05RI4

48

36.0 - 75.0

473

10

30

5.0

4,000

0.0

88

6,800

1,000

MB2048SMRW-12RI4

48

36.0 - 75.0

469

10

30

12.0

1,670

0.0

89

1,160

1,000

MB2048SMRW-15RI4

48

36.0 - 75.0

463

10

30

15.0

1,333

0.0

90

750

1,000

MB2048SMRW-24RI4

48

36.0 - 75.0

472

10

30

24.0

840

0.0

89

295

1,000

MB2048DMRW-12RI4

48

36.0 - 75.0

472

10

30

±12.0

±840

0.0

89

590

1,000

MB2048DMRW-15RI4

48

36.0 - 75.0

465

10

30

±15.0

±670

0.0

90

380

1,000

Model Selection Guide

Notes:

1. The specified maximum capacitive load is for each output.

2. When measuring output ripple, it is recommended that an external 0.47 µF ceramic capacitor

common for dual output units. For noise sensitive applications, the use of 3.3 µF capacitors

will reduce the output ripple. The factory tests output ripple on these units with a MLCC 4.7 µF

capacitor connected.

3. Transient recovery is measured to within a 1% error band for a load step change of 75% to 100%.

4. Dual output units may be connected to provide a 24 VDC or 30 VDC output. To do this, connect

Typical Connection

EMI Characteristics

Parameter

Standard

Criteria

Level

Conducted Emissions

EN 55011

Class A

Radiated Emissions

EN 55011

Class A

ESD

EN 61000-4-2

A

±15 kV Air

±8 kV Contact

RS

EN 61000-4-3

A

10V/m

EFT, See Note at right

EN 61000-4-4

A

±2 kV

Surge, See Note at right

EN 61000-4-5

A

±1 kV

CS

EN 61000-4-6

A

10 Vrms

PFMF

EN 61000-4-8

A

30A/m

T

hese converters are specified for operation without external components.

However, in some applications the addition of input/output capacitors, as shown

in the typical connection diagram above, will enhance stability and reduce output

ripple.This simple connection includes a low ESR (<1 at 100 kHz) capacitor

for 12V input models, a 4.7 µF for 24V and a 2.2 µF for 48V input units.

To improve the output ripple performance, a 4.7 µF is connected across

the output. For dual output units, a 4.7 µF capacitor should be connected from

each output to common.

To meet the specified EN 61000-4-4 and EN 61000-4-5 limits, an external

330 µF/100V capacitor is recommended. This capacitor should be mounted as

close to the module as possible.

5. The converter should be connected to a low ac-impedance source. An input source with a

highly inductive impedance may affect the stability of the converter. In applications where

the converter output loading is high and input power is supplied over long lines, it may be

necessary to use a capacitor on the input to insure start-up. In this case, it is recommended

that a low ESR (ESR <1.0

at 100 kHz) capacitor be mounted close to the converter. For 12V

input units a 10.0 µF is recommended, for 24V a 4.7 µF and for 48V units a 2.2 µF.

6. It is recommended that a fuse be used on the input of a power supply for protection. See the

table above for the correct rating.