VSK-S15-48U

AC - DC POWER SUPPLY CONVERTERS

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Manufacturer: BEL / PARTNER STOCK
Product type: AC / DC PCB Mount Power Supplies
SVHC: To Be Advised
Product Range: VSK-S15 Series

Delivery and price
Units per pack	9
Price	36.93 €
Current stock	10+
Lead time	30 days

Datasheet

Additional Resources:    Product Page **date** 11/11/2022 **page** 1 of 6 GY Culinc **SERIES:** VSK-S15 **DESCRIPTION:** AC-DC POWER SUPPLY **FEATURES** • up to 15W continuous power • compact board mount design • universal input (85~264 Vac / 100~370 Vdc) • single output from 3.3~48 Vdc • over voltage, over current, and short circuit protections • UL/cUL safety approvals • efficiency up to 85% mols CWALUsC € ca **MODEL output output output ripple voltage current power and noise[1] max max** (Vdc) (A) (W) (mVp-p) (%) VSK-S15-3R3U* 3.3 3 9.9 50 73 VSK-S15-5U* 5 2.8 14 50 76 VSK-S15-9U* 9 1.6 14.4 50 78 VSK-S15-12U* 12 1.25 15 50 80 VSK-S15-15U* 15 1.0 15 50 80 VSK-S15-24U 24 0.625 15 50 84 VSK-S15-48U* 48 0.32 15 50 85 Notes: 1. Ripple and noise are measured at 20 MHz BW by “parallel cable” method with 1 uF ceramic and 10 uF electrolytic capacitors on the output. 2. *Discontinued model. **PART NUMBER KEY VSK-S15 - XXU** Base Number Output Voltage **cui** .com 

Additional Resources:    Product Page 

**CUI Inc � SERIES:** VSK-S15 **� DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 11/11/2022 **� page** 2 of 6 

## **INPUT** 

||**INPUT**|
|---|---|
||**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>voltage<br>85<br>100<br>264<br>370<br>Vac<br>Vdc<br>frequency<br>47<br>63<br>Hz<br>current<br>at 115 Vac<br>at 230 Vac<br>370<br>220<br>mA<br>mA<br>inrush current<br>at 115 Vac<br>at 230 Vac<br>10<br>20<br>A<br>A<br>leakage current<br>at 230 Vac, 50 Hz (RMS)<br>0.1<br>mA<br>input fuse<br>2 A/250 V, slow-blow type (external)<br>**OUTPUT**<br>**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>capacitive load<br>3.3 Vdc output model<br>5 Vdc output model<br>9 Vdc output model<br>12 Vdc output model<br>15 Vdc output model<br>24 Vdc output model<br>48 Vdc output model<br>36,000<br>20,000<br>6,000<br>3,000<br>3,000<br>900<br>370<br>��<br>��<br>��<br>��<br>��<br>��<br>��<br>line regulation<br>at full load<br>±0.5<br>%<br>load regulation<br>at 10~100% load<br>±1<br>%<br>voltage set accuracy<br>±2<br>%<br>hold-up time<br>at 115 Vac<br>at 230 Vac<br>15<br>80<br>ms<br>ms<br>switching frequency<br>65<br>kHz<br>��������������������<br>±0.02<br>%/°C<br>**PROTECTIONS**<br>**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>over current protection<br>auto restart<br>110<br>%<br>short circuit protection<br>continuous, auto restart<br>over voltage protection<br>3.3 Vdc output model<br>5 Vdc output model<br>9 Vdc output model<br>12 Vdc output model<br>15 Vdc output model<br>24 Vdc output model<br>48 Vdc output model<br>7.5<br>7.5<br>12<br>20<br>20<br>30<br>60<br>Vdc<br>Vdc<br>Vdc<br>Vdc<br>Vdc<br>Vdc<br>Vdc<br>**SAFETY & COMPLIANCE**<br>**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>isolation voltage<br>input to output for 1 minute<br>3,000<br>Vac<br>safety approvals<br>UL60950-1, CE<br>safety class<br>class II<br>conducted emissions<br>CISPR22/EN55022, Class B<br>radiated emissions<br>CISPR22/EN55022, Class B<br>ESD<br>IEC/EN61000-4-2 Class B, contact ±6 kV/air ±8 kV<br>radiated immunity<br>IEC/EN61000-4-3 Class A, 10V/m<br>EFT/burst<br>IEC/EN61000-4-4 Class B, ±2 kV<br>�������������������������������������������������������������<br>DISCONTINUED|
||radiated immunity<br>|
||EFT/burst|



**cui** .com 

Additional Resources:    Product Page 

**date** 11/11/2022 **page** 3 of 6 

**CUI Inc  SERIES:** VSK-S15 **DESCRIPTION:** AC-DC POWER SUPPLY 

## **SAFETY & COMPLIANCE (CONTINUED)** 

|**parameter**<br>surge<br>conducted immunity<br>PFM<br>voltage dips & interruptions<br>MTBF<br>RoHS|**conditions/description**<br>IEC/EN61000-4-5 Class B, ±1 kV/±2 kV<br>IEC/EN61000-4-6 Class A, 10 Vr.m.s<br>IEC/EN61000-4-8 Class A, 10 A/m<br>IEC/EN61000-4-11 Class B, 0%-70%<br>as per MIL-HDBK-217F at 25 °C<br>2011/65/EU|**min**<br>300,000|**max**<br>**units**<br>hrs<br>D|**max**<br>**units**<br>hrs<br>D|
|---|---|---|---|---|
|**ENVIRONMENTAL**|||||
|**parameter**|**conditions/description**|**min**|**max**|**units**|
|operating temperature|see derating curves|-40|70|°C|
|storage temperature||-40|105|°C|
|storage humidity|non-condensing||95|%|



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DERATING CURVES<br>INPUT VOLTAGE DERATING CURVE INPUT VOLTAGE DERATING CURVE<br>TEMPERATURE DERATING CURVE (Vac) (Vdc)<br>120 120 120<br>_~ 100 _~ 100 _~ 100<br>gg<br>=g 80 =$7580 =g 8075<br>& 60 a 60 2 60<br>53<br>240 2 40 2 40<br>s P) Ss<br>° ° °o<br>20 20 20<br>0) 0) )<br>-40 -10 0 20 40 55 7080 100 85 100 240 264 100 120 340 370<br>Operating Temperature (C°) Input Voltage (Vac) Input Voltage (Vdc)<br>SOLDERABILITY<br>parameter conditions/description min max units<br>hand soldering for 3~5 seconds 350 360 370 °C<br>wave soldering 255 260 265 °C<br>Peak Temp. 260°C Max.<br>250 Wave Soldering Time<br>4 Sec. Max.<br>200<br>10 Sec. Max.<br>150<br>100<br>50<br>0<br>Time (sec.)<br>NTI<br>Temperature (°C)<br>**----- End of picture text -----**<br>


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**cui** .com 

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Additional Resources:    Product Page<br>CUI Inc  �  SERIES:  VSK-S15  � DESCRIPTION:  AC-DC POWER SUPPLY date  11/11/2022  � page  4 of 6<br>MECHANICAL<br>parameter conditions/description min ��� max units<br>dimensions 62.0 x 45.0 x 22.5 (2.44 x 1.77 x 0.88 inch) mm<br>case material UL94V-0<br>weight 85 g<br>cooling convection cooling<br>MECHANICAL DRAWING<br>units: mm[inches]<br>tolerance: ±0.50[±0.020]<br>pin diameter: Ø1.00[0.039]±0.10[±0.004] 62.0 2.441<br>PIN CONNECTIONS<br>PIN FUNCTION<br>22.5 0.886<br>1 AC(N)<br>2 AC(L)<br>3 -Vo<br>4 +Vo<br>6.0 0.236<br>(TYP)<br>4.0 0.157 54.0 2.126<br>2<br>4<br>3 17.5 0.689<br>45.0 1.772<br>1<br>1 20.0 0.787<br>3<br>4<br>2<br>4.0 0.157<br>Grid size: 2.54 x 2.54<br>Ø1.50[Ø0.059] (2 PLCS)<br>Top View BOTTOM VIEW<br>PCB Layout<br>cui .com<br>DISCONTINUED<br>**----- End of picture text -----**<br>


Additional Resources:    Product Page 

**date** 11/11/2022 **page** 5 of 6 

**CUI Inc  SERIES:** VSK-S15 **DESCRIPTION:** AC-DC POWER SUPPLY 

## **TYPICAL APPLICATION CIRCUIT** 

## 

## **Figure 1** 

## **Table 1** 

|||**Table 1**<br>AC (N)<br>-Vo|**Table 1**<br>AC (N)<br>-Vo|||||ED|
|---|---|---|---|---|---|---|---|---|
|||Recommended External Circuit Components||||||ED|
|||MODEL<br>FUSE<br>MOV1<br>C1|C2|||||TVS|
|||VSK-S15-3R3U<br>2A/250V<br>S14K350<br>1µF||||||SMBJ7.0A|
|||VSK-S15-5U<br>2A/250V<br>S14K350<br>1µF||||||SMBJ7.0A|
|||VSK-S15-9U<br>2A/250V<br>S14K350<br>1µF||||||SMBJ12A|
|||VSK-S15-12U<br>2A/250V<br>S14K350<br>1µF||||||SMBJ20A|
|||VSK-S15-15U<br>2A/250V<br>S14K350<br>1µF||||||SMBJ20A|
|||VSK-S15-24U<br>2A/250V<br>S14K350<br>1µF||||||SMBJ30A|
|VSK-S15-48U<br>2A/250V<br>S14K350<br>1µF<br>Recommended External Circuit Components<br>MOV1<br>S14K350<br>CY1, CY2<br>1000pF/400Vac<br>CX<br>LCM<br>10mH<br>LDM<br>**EMC RECOMMENDED CIRCUIT**<br>**Figure 2**<br>**Table 2**<br>DISCON<br>Poo ococ occ cero<br>occoco<br>FUSE<br>| mov1<br>cx_LDM<br>icy<br>I<br>c1<br>—<br>—<br>AC (L)<br>+Vo<br>cy1<br>|<br>.<br>+<br>CI<br>I<br>Vin<br>Sy<br>'<br>AC-DC<br>=<br>|<br>cy2<br>|<br>AC(N)<br>-Vo<br>tL<br>|<br>|<br>=<br>Mme eee ii<br>i<br>Cd||||c2<br>+|||SMBJ64A<br>TvSs1<br>aN<br>R-Load||
|||Note:<br>Also refer to Table 1|||||||
|Notes:|1.|Output filtering capacitor C2 is an electrolytic capacitor, It is recommended to use high frequency and low|impedance electrolytic capacitors.||||||
|||of capacitor please refer to manufacture’s datasheet. Voltage derating of capacitor should be 80% or above. Ci is used to filter high frequency|||||||
|recommended component to protect post-circuits (when converter fails).|recommended component to protect post-circuits (when converter fails).|recommended component to protect post-circuits (when converter fails).|||||||
||2.|2.<br>AllspecificationsmeasuredatTa=25C,humidity<75%,nominalinputvoltage,andratedoutputload,unless|otherwise|otherwise|specified.|specified.|specified.||



**cui** .com 

Additional Resources:    Product Page 

**date** 11/11/2022 **page** 6 of 6 

**CUI Inc  SERIES:** VSK-S15 **DESCRIPTION:** AC-DC POWER SUPPLY 

## **REVISION HISTORY** 

|**rev.**<br>**description**<br>**date**<br>1.0<br>initial release<br>07/26/2011<br>1.01<br>08/16/2012<br>1.02<br>added dual and triple output models<br>11/16/2012<br>1.03<br>updated deratingcurves<br>01/29/2013<br>1.04<br>updated spec and removed models<br>07/22/2014<br>1.05<br>updated operatingand storage temperatures<br>06/10/2015<br>1.06<br>companylogo updated<br>10/29/2020<br>1.07<br>06/01/2022<br>ED|**rev.**<br>**description**<br>**date**<br>1.0<br>initial release<br>07/26/2011<br>1.01<br>08/16/2012<br>1.02<br>added dual and triple output models<br>11/16/2012<br>1.03<br>updated deratingcurves<br>01/29/2013<br>1.04<br>updated spec and removed models<br>07/22/2014<br>1.05<br>updated operatingand storage temperatures<br>06/10/2015<br>1.06<br>companylogo updated<br>10/29/2020<br>1.07<br>06/01/2022<br>ED|
|---|---|
|1.08<br>discontinued models VSK-S15-12U, VSK-S15-15U, VSK-S15-48U,<br>VSK-S15-9U, VSK-S15-3R3U<br>11/11/2022||
|The revision history provided is for informational purposes only and is believed to be accurate.||
|**Headquarters**<br>20050 SW 112th Ave.<br>Tualatin, OR 97062<br>Fax 503.612.2383<br>**cui**.com<br>DISCONTI<br><F CUIINC||
|**800.275.4899**<br>techsupport@cui.com<br>a bel group||
|CUI offers a two (2) year limited warranty.<br>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

Updated at April 27, 2026

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