Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833

603-778-2300 www.wallindustries.com Fax 603-778-9797

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DBW Series

Single and Dual Outputs

40 Watt DC/DC Converter

4:1 Ultra Wide Input Voltage Range

Rev C

DERATING CURVES & EFFICIENCY GRAPHS

Figure 1

Figure 2

Recommended Filter for EN55022 Class B Compliance

Recommended EN55022 Class B Filter Circuit Layout

The components used in the above figure are as follows:

C1

C2

C3

C4

C5 & C6

L1

DBW24Sxx-xx

4.7µF/50V

1812MLCC

N/A

4.7µF/50V

1812MLCC

N/A

1000pF/2KV

MLCC

450µH

Common Choke

PMT-048

DBW48Sxx-xx

2.2µF/100V

1812 MLCC

2.2µF/100V

1812 MLCC

2.2µF/100V

1812 MLCC

2.2µF/100V

1812 MLCC

1000pF/2KV

MLCC

830µH

Common Choke

PMT-053