Datasheet

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CUI Inc │ SERIES: VHK75W │ DESCRIPTION: DC-DC CONVERTER date 12/16/2013 │ page 5 of 9
Note: 1. Aluminum capacitors.
2. Ceramic capacitors.
EMC RECOMMENDED CIRCUITS
(
CONTINUED
)
Figure 3
Recommended Circuit for EN55022 Class A
(for all 48 Vdc output models)
Table 2
Class A Recommended Components
C1
L1
+Vin +Vin
-Vin -Vin
+Vo
-Vo
DC/DC Converter
C2
CY5
CY6
+Vo
-Vo
-S
+S
Model C1
1
C2
1
C3
1
C4
2
CY5
2
CY6
2
L1 L2
VHK75W-Q24-S3R3 NC 47 μF/50 V 47 μF/50 V 2200 pF/2 kV NC NC Short 3.4 μH
VHK75W-Q24-S5 NC 47 μF/50 V 47 μF/50 V 2200 pF/2 kV NC NC Short 3.4 μH
VHK75W-Q24-S12 NC 47 μF/50 V 47 μF/50 V 2200 pF/2 kV NC NC Short 3.4 μH
VHK75W-Q24-S15 NC 47 μF/50 V 47 μF/50 V 2200 pF/2 kV NC NC Short 3.4 μH
VHK75W-Q24-S24 NC 100 μF/50 V 100 μF/50 V 2200 pF/2 kV NC NC Short 3.4 μH
VHK75W-Q24-S48 220 μF/50 V 100 μF/50 V NC NC 1000 pF/2 kV 1000 pF/2 kV 0.223 mH NC
VHK75W-Q48-S3R3 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV NC NC Short 3.4 μH
VHK75W-Q48-S5 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV NC NC Short 3.4 μH
VHK75W-Q48-S12 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV NC NC Short 3.4 μH
VHK75W-Q48-S15 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV NC NC Short 3.4 μH
VHK75W-Q48-S24 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV NC NC Short 3.4 μH
VHK75W-Q48-S48 56 μF/100 V 39 μF/100 V NC NC 1000 pF/2 kV 470 pF/2 kV 0.223 mH NC
EN55022 CLASS A
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