Pin

Function

10

Common

Pin Connections

Model Selection Guide

MicroPower Direct

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292 Page Street Ste D Stoughton, MA 02072

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TEL: (781) 344-8226

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FAX: (781) 344-8481

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E-Mail: sales@micropowerdirect.com

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Model

Number

Input

Output

Efficiency

(%, Typ)

Fuse Rating

Slow-Blow

(mA)

Voltage

(VDC)

Current

(mA, Max)

Current

(mA, Min)

Nominal

Range

Full-Load No-Load

MD105D-05ER

5

4.75 - 5.25

289

30

±5.0

±100

±10.0

69

600

MD105D-09ER

5

4.75 - 5.25

317

30

±9.0

±56

±6.0

63

600

MD105D-12ER

5

4.75 - 5.25

317

30

±12.0

±42

±5.0

63

600

MD105D-15ER

5

4.75 - 5.25

307

30

±15.0

±33

±4.0

65

600

MD112D-05ER

12

11.4 - 12.6

116

15

±5.0

±100

±10.0

72

250

MD112D-09ER

12

11.4 - 12.6

116

15

±9.0

±56

±6.0

62

250

MD112D-12ER

12

11.4 - 12.6

128

15

±12.0

±42

±5.0

65

250

MD112D-15ER

12

11.4 - 12.6

126

15

±15.0

±33

±4.0

66

250

MD124D-05ER

24

22.8 - 25.2

58

12

±5.0

±100

±10.0

72

150

MD124D-09ER

24

22.8 - 25.2

67

12

±9.0

±56

±6.0

62

150

MD124D-12ER

24

22.8 - 25.2

65

12

±12.0

±42

±5.0

64

150

MD124D-15ER

24

22.8 - 25.2

63

12

±15.0

±33

±4.0

66

150

Notes:

1. Operation at no load will not damage these units. However, they may not

meet all specifications.

2. These converters will operate without external components. However,

when measuring output ripple, it is recommended that an external

ceramic capacitor be placed from the +Vout pin to the -Vout pin for

single output units and from each output to common for dual output

units. An input capacitor will enhance stability over temperature and

input line variations. For applications requiring very low output noise

levels, a simple LC filter, as shown in the connection diagram below,

should be effective. Recommended component values are given in

the table below the diagram.

Mechanical Dimensions

Notes:

Derating Curve

5 VDC

4.7 µF/50V

4.7 - 10 µH

±5 VDC

4.7 - 10 µH

10 µF

12 VDC

4.7 µF/50V

4.7 - 10 µH

±9 VDC

4.7 - 10 µH

4.7 µF

24 VDC

1.0 µF/50V

4.7 - 10 µH

±12 VDC

4.7 - 10 µH

2.2 µF

±15 VDC

4.7 - 10 µH

1.0 µF

3. The typical switching frequency for the MD105D-15ER is 250 kHz. For the

MD124D-15ER the typical switching frequency is 300 kHz.

4. 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.