Model Selection Guide

Mechanical Dimensions

Derating Curve

Notes:

1. Output voltage tolerance is measured at nominal input and 75% load.

2. Output ripple is measured at 20 MHz bandwidth using 0.1 µF and 10 µF

capacitors connected in parallel as close to the power supply terminals

as possible.

3. These units will operate at no load without damage. For most appli-

cations however, MPD recommends that a minimum load always be

used. Contact the factory for more information.

4. Each unit includes an input fuse (250V/2A). Since this fuse is not field

replaceable, it is recommended that an external fuse of the same size

be used on the input of the power supply for protection.

Notes:

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

Other Models May Be Available. Contact The Factory For Details

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Model

Number

Input

Output

Max

Output

Power

(W)

Max

Output

Capacitance

(µF)

Efficiency

(%, Typ)

Voltage

(VDC)

Rated

% Min.

MPB-20S-03

0.44

0.24

3.3

4.40

0.00

14.5

4,400

68

MPB-20S-05

0.44

0.24

5.0

4.40

0.00

22.0

4,400

75

MPB-20S-09

0.44

0.24

9.0

2.45

0.00

22.0

2,530

79

MPB-20S-12

0.44

0.24

12.0

1.80

0.00

22.0

2,200

81

MPB-20S-15

0.44

0.24

15.0

1.40

0.00

22.0

1,400

83

MPB-20S-24

0.44

0.24

24.0

0.92

0.00

22.0

950

83

Pin

Description

1

AC-Neutral

2

AC-Line

3

+V Output

4

+V Output

5

-V Output

6

-V Output

Safety Ground:

The mounting holes marked “Use metal

standoffs” should be connected to the system

earth ground via metal spacers or a cable.

The input side mounting hole marked “FG”

provides the safety earth ground for the unit.

This connection should be locked to prevent

possible loosening. Connecting the output

side mounting hole improves EMI.

Pin Connections