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VSK-S3-3R3U Datasheet(PDF) 4 Page - CUI INC

Part # VSK-S3-3R3U
Description  AC-DC POWER SUPPLY
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Manufacturer  CUI [CUI INC]
Direct Link  http://www.cui.com
Logo CUI - CUI INC

VSK-S3-3R3U Datasheet(HTML) 4 Page - CUI INC

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cui.com
date 03/31/2014
│ page 4 of 5
CUI Inc
│ SERIES: VSK-S3 │ DESCRIPTION: AC-DC POWER SUPPLY
L
+V0
-V0
L
N
N
C1
C2
*FUS E
Tv s
RL
*NTC
MOV
C3
22
26
+
+
Figure1
L
+V0
-V0
L
N
N
C1 C2
*F USE
Tvs
RL
*NTC
MO V
NF
C8
C6
C7
C3
+
+
22
26
Figure 2 VSK-S3 EMC Filtering Circuit
TYPICAL APPLICATION CIRCUIT
EXTERNAL CAPACITORS TYPICAL VALUE (Unit: µF)
MODEL
C1
C2
C3
TVS
VSK-S3-3R3U
150
0.1
4.7/400V
P4KE6.8A
VSK-S3-5U
150
0.1
4.7/400V
P4KE6.8A
VSK-S3-9U
150
0.1
4.7/400V
P4KE12A
VSK-S3-12U
150
0.1
4.7/400V
P4KE20A
VSK-S3-15U
150
0.1
4.7/400V
P4KE20A
VSK-S3-24U
150
0.1
4.7/400V
P4KE30A
Notes:
1. Output filtering capacitors C1, C3 is electrolytic capacitors, It is recommended to use high frequency
and low impedance electrolytic capacitors. For capacitance and current of capacitor please refer to
manufacture’s datasheet. Voltage derating of apacitor should be 80% or above. C2, C4 is ceramic
capacitors , it is used to filter high frequency noise. TVS is a recommended component to protect
post-circuits (when converter fails).
2. MOV is required for VSK-S3 models. Model: 471KD05, it is used to protect the device under surge.
3. It is recommended to connect FUSE, the parameter is 0.5A/250V slow blow. External input NTC is
recommended to use D -14 or 10Ω/2W wire-round resistor.
4. If EMC performance is required, recommended to add “EMC filter” at the input end(see figure 2)
C6:X capacitor, recommended parameter 0.1uF/275V; C7,C8:Y capacitor, recommended parameter
220pF/275V; NF: common model choke, recommended inductance is about 10mH-30mH.
5. Terminals 22 and 26 are internal rectification and filtering terminals. To protect the models further, it
is recommended to connect an electrolytic capacitor C3 (it is recommended to be 4.7uF/400V). If
operation voltage of the module is between 160~264VAC, C3 can be removed.
Note:
1. All specifications measured at Ta=25°C, humidity <75%, rated input voltage, and rated output load, unless otherwise specified.
For more information, please visit the product page.


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