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CUI Inc

│ SERIES: VHK100W │ DESCRIPTION: DC-DC CONVERTER

date 12/16/2013

│ page 6 of 8

EMC RECOMMENDED CIRCUITS (CONTINUED)

Figure 4

Recommended Circuit for EN55022 Class B

(for all 48 Vdc output models)

EN55022 CLASS B

DC/DC Converter

+Vo

-Vo

+Vin

C1

-Vin

C2

+Vo

-Vo

CASE

+Vin

-Vin

-S

+S

L1

C3

Table 3

Class B Recommended Components

Note:

1. Aluminum capacitors

2. Ceramic capacitors

Model

L1

VHK100W-Q24-S3R3

220 μF/50 V

220 μF/50 V

NC

3.4 μH

VHK100W-Q24-S5

220 μF/50 V

220 μF/50 V

NC

3.4 μH

VHK100W-Q24-S12

220 μF/50 V

220 μF/50 V

NC

3.4 μH

VHK100W-Q24-S15

220 μF/50 V

220 μF/50 V

NC

3.4 μH

VHK100W-Q24-S24

220 μF/50 V

220 μF/50 V

NC

3.4 μH

VHK100W-Q24-S28

220 μF/50 V

220 μF/50 V

NC

3.4 μH

VHK100W-Q24-S48

100 μF/50 V

100 μF/50 V

2200 pF/2 KV

0.53 mH

VHK100W-Q48-S3R3

47 μF/100 V

47 μF/100 V

NC

3.4 μH

VHK100W-Q48-S5

47 μF/100 V

47 μF/100 V

NC

3.4 μH

VHK100W-Q48-S12

47 μF/100 V

47 μF/100 V

NC

3.4 μH

VHK100W-Q48-S15

47 μF/100 V

47 μF/100 V

NC

3.4 μH

VHK100W-Q48-S24

47 μF/100 V

47 μF/100 V

NC

3.4 μH

VHK100W-Q48-S28

47 μF/100 V

47 μF/100 V

NC

3.4 μH

VHK100W-Q48-S48

47 μF/100 V

47 μF/100 V

2200 pF/2 KV

0.53 mH

For more information, please visit the product page.