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VSK-S1-3R3U

P1-P3P4-P5
cui.com
date 10/26/2015 │ page 4 of 5CUI Inc │ SERIES: VSK-S1 │ DESCRIPTION: AC-DC POWER SUPPLY
TYPICAL APPLICATION CIRCUIT
TEST CONFIGURATION
EMC RECOMMENDED CIRCUIT
LC M
C2
CX
C
MOV
AC
(L)
AC (N)
R1
AC (L)
AC (N)
+Vo
-Vo
+
C1
RL
TV S
FU SE
AC /DC
Y3
CY4
Figure 2
Figure 3
Figure 1
Table 2
Table 1
Externalcomponents
C1 1μFceramic
C2 10μFelectrolytic
Notes: 1.SeeTable2forEMCcomponents.
2.TVSisarecommendedcomponenttoprotectpost-circuitsifconverterfails.
3.C1isaceramiccapacitorusedtolterhighfrequencynoise.
4.C2isanelectrolyticcapacitor.Werecommendusinghighfrequencyandlowimpedenceelectrolyticcapacitors.Forcapacitanceandcurrentofcapacitorpleaserefertothe
manufacture’sdatasheet.Voltagederatingofcapacitorshouldbe80%orabove.
5.Allspecicationsaremeasuredatratedinputvoltage,ratedoutputload,TA=25°C,andhumidity<75%unlessotherwisespecied.
C2
MOV
AC(L)
AC(N)
NTC
AC(L)
AC(N)
+Vo
-Vo
+
C1
RL
TV S
FU SE
AC/DC
CX
AC/DC
+Vo
-Vo
FUSE
AC(L)
A
C(N)
25.4mm 25.4mm
C1
C2
12.7mm
Copper sheet
Connect
Oscillograph Prob
e
Load
AC(L)
AC(N)
Recommendedexternalcircuitcomponents
Model FUSE MOV NTC R1 CY3, CY4 CX LCM TVS
1
C1
2
C2
3
VSK-S1-3R3U 1A/300V,slowblow S14K350 10D-11 47Ω/3W 2.2nF/400V 0.4μF/305Vac 10 mH SMBJ7.0A 1μF/50V 220μF
VSK-S1-5U 1A/300V,slowblow S14K350 10D-11 47Ω/3W 2.2nF/400V 0.1μF/305Vac 10 mH SMBJ7.0A 1μF/50V 220μF
VSK-S1-9U 1A/300V,slowblow S14K350 10D-11 47Ω/3W 2.2nF/400V 0.1μF/305Vac 10 mH SMBJ12A 1μF/50V 120μF
VSK-S1-12U 1A/300V,slowblow S14K350 10D-11 47Ω/3W 2.2nF/400V 0.1μF/305Vac 10 mH SMBJ20A 1μF/50V 120μF
VSK-S1-15U 1A/300V,slowblow S14K350 10D-11 47Ω/3W 2.2nF/400V 0.1μF/305Vac 10 mH SMBJ20A 1μF/50V 120μF
VSK-S1-24U 1A/300V,slowblow S14K350 10D-11 47Ω/3W 2.2nF/400V 0.1μF/305Vac 10 mH SMBJ30A 1μF/50V 68μF
For more information, please visit the product page.
date 10/26/2015 │ page 5 of 5CUI Inc │ SERIES: VSK-S1 │ DESCRIPTION: AC-DC POWER SUPPLY
CUIoffersatwo(2)yearlimitedwarranty.Completewarrantyinformationislistedonourwebsite.
CUIreservestherighttomakechangestotheproductatanytimewithoutnotice.InformationprovidedbyCUIisbelievedtobeaccurateandreliable.However,noresponsibilityis
assumedbyCUIforitsuse,norforanyinfringementsofpatentsorotherrightsofthirdpartieswhichmayresultfromitsuse.
CUIproductsarenotauthorizedorwarrantedforuseascriticalcomponentsinequipmentthatrequiresanextremelyhighlevelofreliability.Acriticalcomponentisanycomponentofa
lifesupportdeviceorsystemwhosefailuretoperformcanbereasonablyexpectedtocausethefailureofthelifesupportdeviceorsystem,ortoaffectitssafetyoreffectiveness.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax503.612.2383
cui.com
techsupport@cui.com
rev. description date
1.0 initialrelease 06/04/2012
1.01 pictureupdated 09/06/2012
1.02 updatedderatingcurvesandspec 11/12/2013
1.03 internalinductor&PCBstructurechanged 10/26/2015
Therevisionhistoryprovidedisforinformationalpurposesonlyandisbelievedtobeaccurate.
REVISION HISTORY
For more information, please visit the product page.
P1-P3P4-P5

VSK-S1-3R3U

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Switching Power Supplies Internal AC-DC Power Supplies
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