Datasheet

cui.com
CUI Inc │ SERIES: VHK50W-DIN │ DESCRIPTION: DC-DC CONVERTER date 06/16/2014 │ page 5 of 9
EMC RECOMMENDED CIRCUITS
(
CONTINUED
)
Figure 3
Recommended Circuit for EN55022 Class A
(for all 48 Vdc output models)
Table 2
Class A Recommended Components
C3
L2L1
+Vin +Vin
-Vin -Vin
+Vo
-Vo
-S
+S
CASE
DC/DC Converter
C2
C4
C1 Co min.
+Vo
-Vo
Model C1
1
C2
2
C3
2
C4
1
L1 L2 Co min.
VHK50W-Q24-S3R3 NC 100 μF/50 V 100 μF/50 V 2200 pF/2 kV Short 3.5 μH NC
VHK50W-Q24-S5 NC 100 μF/50 V 100 μF/50 V 2200 pF/2 kV Short 3.5 μH NC
VHK50W-Q24-S12 NC 100 μF/50 V 100 μF/50 V 2200 pF/2 kV Short 3.5 μH NC
VHK50W-Q24-S15 NC 100 μF/50 V 100 μF/50 V 2200 pF/2 kV Short 3.5 μH NC
VHK50W-Q24-S24 10 μF/50 V 100 μF/50 V 100 μF/50 V NC 1.5 mH 3.4 μH NC
VHK50W-Q24-S28 NC 100 μF/50 V 100 μF/50 V 2200 pF/2 kV Short 3.4 μH NC
VHK50W-Q24-S48 NC 100 μF/50 V 100 μF/50 V NC Short 3.5 μH 47 μF
VHK50W-Q48-S3R3 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV Short 3.4 μH NC
VHK50W-Q48-S5 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV Short 3.4 μH NC
VHK50W-Q48-S12 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV Short 3.4 μH NC
VHK50W-Q48-S15 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV Short 3.4 μH NC
VHK50W-Q48-S24 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV Short 3.4 μH NC
VHK50W-Q48-S28 NC 100 μF/100 V 100 μF/100 V 2200 pF/2 kV Short 3.4 μH NC
VHK50W-Q48-S48 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV Short 3.5 μH 47 μF
Note: 1. Ceramic capacitors
2. Aluminum capacitors
EN55022 CLASS A
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