Model Selection Guide

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Notes:

1. Cross regulation is measured with the output being tested at 100% load while the other output

is varied from 25% to 100% load.

2. See the typical connection circuit on page three for typical external filtering components. For help with a

specific model or layout issue, contact the factory.

3. Isolation voltage is specified for Input to output. On units with the optional metal case, the isolation voltage

for Input - Case and Output - Case is 1,000 VDC.

4. Operation at no-load will not damage the unit,but they may not meet all specifications.To meet all specifica-

tions, a minimum load of 25% should be maintained.

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

table above for the correct rating.

Model

Number

Input

Output

Efficiency

(%, Typ)

Reflected

Ripple

Current

(mA Typ)

Capacitive

Load

(µF, Max)

Fuse

Rating

Slow-Blow

(mA)

Voltage

(VDC)

Current

(mA, Max)

Current

(mA, Min)

Nominal

Range

Full-Load No-Load

MA412S-05RWI-xx

12

9.0 - 18.0

463

20

5.0

800.0

200.0

72

35.0

2,200

1,000

MA412S-09RWI-xx

12

9.0 - 18.0

427

20

9.0

444.0

111.0

78

35.0

470

1,000

MA412S-12RWI-xx

12

9.0 - 18.0

427

20

12.0

333.0

83.3

78

35.0

470

1,000

MA412S-15RWI-xx

12

9.0 - 18.0

433

20

15.0

267.0

66.8

77

35.0

470

1,000

MA412S-24RWI-xx

12

9.0 - 18.0

439

20

24.0

167.0

42.0

76

35.0

220

1,000

MA412D-05RWI-xx

12

9.0 - 18.0

433

20

±5.0

±400.0

±100.0

77

35.0

±1,000

1,000

MA412D-09RWI-xx

12

9.0 - 18.0

433

20

±9.0

±222.0

±56.0

77

35.0

±220

1,000

MA412D-12RWI-xx

12

9.0 - 18.0

427

20

±12.0

±167.0

±42.0

78

35.0

±220

1,000

MA412D-15RWI-xx

12

9.0 - 18.0

427

20

±15.0

±133.0

±33.0

78

35.0

±220

1,000

MA412D-24RWI-xx

12

9.0 - 18.0

433

20

±24.0

±83.0

±21.0

77

35.0

±100

1,000

MA424S-05RWI-xx

24

18.0 - 36.0

216

12

5.0

800.0

200.0

77

35.0

2,200

500

MA424S-09RWI-xx

24

18.0 - 36.0

214

12

9.0

444.0

111.0

78

35.0

470

500

MA424S-12RWI-xx

24

18.0 - 36.0

211

12

12.0

333.0

83.3

79

35.0

470

500

MA424S-15RWI-xx

24

18.0 - 36.0

208

12

15.0

267.0

66.8

80

35.0

470

500

MA424S-24RWI-xx

24

18.0 - 36.0

216

12

24.0

167.0

42.0

77

35.0

220

500

MA424D-05RWI-xx

24

18.0 - 36.0

225

12

±5.0

±400.0

±100.0

77

35.0

±1,000

500

MA424D-09RWI-xx

24

18.0 - 36.0

225

12

±9.0

±222.0

±56.0

77

35.0

±220

500

MA424D-12RWI-xx

24

18.0 - 36.0

219

12

±12.0

±167.0

±42.0

78

35.0

±220

500

MA424D-15RWI-xx

24

18.0 - 36.0

216

12

±15.0

±133.0

±33.0

79

35.0

±220

500

MA424D-24RWI-xx

24

18.0 - 36.0

219

12

±24.0

±83.0

±21.0

76

35.0

±100

500

MA448S-05RWI-xx

48

36.0 - 72.0

108

8

5.0

800.0

200.0

77

35.0

2,200

250

MA448S-09RWI-xx

48

36.0 - 72.0

108

8

9.0

444.0

111.0

77

35.0

470

250

MA448S-12RWI-xx

48

36.0 - 72.0

107

8

12.0

333.0

83.3

78

35.0

470

250

MA448S-15RWI-xx

48

36.0 - 72.0

107

8

15.0

267.0

66.8

77

35.0

470

250

MA448S-24RWI-xx

48

36.0 - 72.0

111

8

24.0

167.0

42.0

75

35.0

220

250

MA448D-05RWI-xx

48

36.0 - 72.0

114

8

±5.0

±400.0

±100.0

73

35.0

±1,000

250

MA448D-09RWI-xx

48

36.0 - 72.0

108

8

±9.0

±222.0

±56.0

77

35.0

±220

250

MA448D-12RWI-xx

48

36.0 - 72.0

108

8

±12.0

±167.0

±42.0

77

35.0

±220

250

MA448D-15RWI-xx

48

36.0 - 72.0

107

8

±15.0

±133.0

±33.0

78

35.0

±220

250

MA448D-24RWI-xx

48

36.0 - 72.0

110

8

±24.0

±83.0

±21.0

76

35.0

±100

250

Model Number

For the alternate pin-out (see page 4) , add suffix “P2” to model number

(i.e. MA424S-05RWI-P2)

Derating Curve