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VSK-S5-3R3UA-T
AC - DC POWER SUPPLY CONVERTERS
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: BEL / PARTNER STOCK
- Product type: AC / DC Enclosed Power Supplies
- SVHC: To Be Advised
- Product Range: VSK-S5 Series
| Delivery and price | |
|---|---|
| Units per pack | 9 |
| Price | 22.86 € |
| Current stock | 25+ |
| Lead time | 30 days |
Datasheet
Additional Resources: Product Page **date** 11/11/2022 **page** 1 of 6 |**SERIES:**VSK-S5-T**DESCRIPTION:**AC-DC POWER SUPPLY<br>**MODEL**<br>**output**<br>**voltage**<br>(Vdc)<br>VSK-S5-3R3UA-T*<br>3.3<br>VSK-S5-5UA-T<br>5<br>VSK-S5-9UA-T*<br>9<br>**FEATURES**<br>• up to 5.5 W continuous output<br>• encapsulated compact case<br>• universal input (85~264 Vac/110~370 Vdc)<br>• single regulated output from 3.3~24 Vdc<br>• over voltage, over temperature, and short circuit protections<br>• UL/cUL safety approvals<br>• efficiency up to 83%<br>vousCHAR<br>s C €|AC-DC POWER SUPPLY<br>**output**<br>**current**<br>**output**<br>**power**<br>**ripple**<br>**and noise1**<br>**max**<br>(mA)<br>**max**<br>(W)<br>**max**<br>(mVp-p)<br>**max**<br>(%)<br>1250<br>4.125<br>120<br>74<br>1000<br>5<br>120<br>78<br>550<br>5<br>100<br>78<br>TINUED|AC-DC POWER SUPPLY<br>**output**<br>**current**<br>**output**<br>**power**<br>**ripple**<br>**and noise1**<br>**max**<br>(mA)<br>**max**<br>(W)<br>**max**<br>(mVp-p)<br>**max**<br>(%)<br>1250<br>4.125<br>120<br>74<br>1000<br>5<br>120<br>78<br>550<br>5<br>100<br>78<br>TINUED|AC-DC POWER SUPPLY<br>**output**<br>**current**<br>**output**<br>**power**<br>**ripple**<br>**and noise1**<br>**max**<br>(mA)<br>**max**<br>(W)<br>**max**<br>(mVp-p)<br>**max**<br>(%)<br>1250<br>4.125<br>120<br>74<br>1000<br>5<br>120<br>78<br>550<br>5<br>100<br>78<br>TINUED|AC-DC POWER SUPPLY<br>**output**<br>**current**<br>**output**<br>**power**<br>**ripple**<br>**and noise1**<br>**max**<br>(mA)<br>**max**<br>(W)<br>**max**<br>(mVp-p)<br>**max**<br>(%)<br>1250<br>4.125<br>120<br>74<br>1000<br>5<br>120<br>78<br>550<br>5<br>100<br>78<br>TINUED| |---|---|---|---|---| |VSK-S5-12UA-T<br>12|420|5|100|80| |VSK-S5-15UA-T*<br>15|333|5|100|82| |VSK-S5-24UA-T*<br>24|230|5.5|100|83| ## **SERIES:** VSK-S5-T **DESCRIPTION:** AC-DC POWER SUPPLY ## **FEATURES** - up to 5.5 W continuous output - encapsulated compact case - universal input (85~264 Vac/110~370 Vdc) - single regulated output from 3.3~24 Vdc - over voltage, over temperature, and short circuit protections - UL/cUL safety approvals - efficiency up to 83% 2. * Discontinued model. ## **PART NUMBER KEY** ## ## **- - VSK S5 XX UA-T** Base Number example of 5 W, single output Output Voltage **cui** .com Additional Resources: Product Page **date** 11/11/2022 **page** 2 of 6 **CUI Inc SERIES:** VSK-S5-T **DESCRIPTION:** AC-DC POWER SUPPLY ## **INPUT** |**INPUT**||||| |---|---|---|---|---| |**parameter**<br>voltage<br>frequency<br>current<br>inrush current<br>input fuse|**conditions/description**<br>at 110 Vac<br>at 230 Vac<br>at 110 Vac<br>at 230 Vac<br>1 A/250 V, slow-blow type (internal, included)|**min**<br>85<br>110<br>47|110<br>70<br>10<br>20|**max**<br>**units**<br>264<br>370<br>Vac<br>Vdc<br>63<br>Hz<br>mA<br>mA<br>A<br>A<br>D| ||||±0.02|%/°C| ## **OUTPUT** |**parameter**|**conditions/description**|**min**||**max**|**units**| |---|---|---|---|---|---| ||3.3 Vdc model|||4000|| ||5 Vdc model|||4000|| |capcitive load1<br>9 Vdc model<br>12 Vdc model<br>15 Vdc model<br>24 Vdc model<br>line regulation<br>load regulation<br>at 10~100% load<br>voltage set accuracy<br>3.3 Vdc model<br>all other models<br>hold-up time<br>at 110 Vac<br>at 230 Vac<br>switching frequency<br>Notes:<br>1. Test without external circuit<br>**PROTECTIONS**<br>**parameter**<br>**conditions/description**<br>**min**<br>over voltage protection<br>shutdown<br>over current protection<br>auto recovery<br>110<br>short circuit protection<br>hiccup, auto recovery<br>**SAFETY & COMPLIANCE**<br>**parameter**<br>**conditions/description**<br>**min**<br>isolation voltage<br>for 1 minute<br>4,000<br>safety approvals<br>UL60950-1<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>ISCONTI|||±0.5<br>±1<br>±3<br>±2<br>12<br>80|1000<br>820<br>820<br>330<br>140<br>**max**<br>**max**|%<br>%<br>%<br>%<br>ms<br>ms<br>kHz<br>**units**<br>%<br>**units**<br>Vac| |radiated immunity|IEC/EN61000-4-3 Class A, 10V/m||||| ||IEC/EN61000-4-4 Class B, ±2 kV||||| ||||||| ||IEC/EN61000-4-5 Class B, ±1 kV / ±2 kV||||| |surge|IEC/EN61000-4-5 Class B, +2 kV/ +4 kV (external circuit required,||see figure 2)||| |conducted immunity|IEC/EN61000-4-6 Class A, 10 Vr.m.s||||| **cui** .com Additional Resources: Product Page **CUI Inc � SERIES:** VSK-S5-T **� DESCRIPTION:** AC-DC POWER SUPPLY **date** 11/11/2022 **� page** 3 of 6 ## **SAFETY & COMPLIANCE (CONTINUED)** |**ENVIRONMENTAL**<br>**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>operating temperature<br>see derating curves<br>-25<br>70<br>°C<br>storage temperature<br>-25<br>105<br>°C<br>storage humidity<br>non-condensing<br>95<br>%<br>**parameter**<br>**conditions/description**<br>**min**<br>**���**<br>**max**<br>**units**<br>���<br>IEC/EN61000-4-8 Class A, 10 A/m<br>voltage dips & interruptions<br>IEC/EN61000-4-11 Class B, 0%-70%<br>����<br>�������������������������<br>300,000<br>hours<br>RoHS<br>2011/65/EU<br>UED| |---| ## **DERATING CURVES** **==> picture [559 x 119] intentionally omitted <==** **----- Start of picture text -----**<br> load vs. ambient temperature load vs. input voltage (Vac) load vs. input voltage (Vdc)<br>100 100 100<br>80 80 80<br>70<br>60 60 Safe operating area 60 Safe operating area<br>50 50 50<br>40 40 40<br>20 20 20<br>-25 -10 0 55 70 85 110 240 264 100 140 340 370<br>Ambient Temperature (°C) Input Voltage (Vac) Input Voltage (Vdc)<br>~~ ~~ ~~<br>Load (%) Load (%)<br>Load (%)<br>~~ ~~ ~~<br>**----- End of picture text -----**<br> ## **EFFICIENCY CURVES** **==> picture [561 x 177] intentionally omitted <==** **----- Start of picture text -----**<br> Efficiency Vs Input Voltage (Full Load) Efficiency Vs Output (Vin=230Vac)<br>90 90<br>85 VSK-S5-24UA-T 85 VSK-S5-24UA-T<br>VSK-S5-12UA-T<br>VSK-S5-12UA-T<br>80 80 VSK-S5-5UA-T<br>VSK-S5-5UA-T<br>75 75<br>70 70<br>65 65<br>60<br>60<br>55<br>55<br>50<br>50<br>10 20 30 40 50 60 70 80 90 100<br>85 110 180 230 264<br>Input Voltage (VAC) Output Power Percentage (%)<br>Efficiency(%) Effic ie nc y(%)<br>**----- End of picture text -----**<br> **cui** .com Additional Resources: Product Page **CUI Inc � SERIES:** VSK-S5-T **� DESCRIPTION:** AC-DC POWER SUPPLY **date** 11/11/2022 **� page** 4 of 6 ## **MECHANICAL** **==> picture [564 x 507] intentionally omitted <==** **----- Start of picture text -----**<br> parameter conditions/description min ��� max units<br>dimensions 76.0 x 31.50 x 23.96 (2.992 x 1.240 x 0.943 inch) mm<br>material UL94V-0<br>weight 52 g<br>MECHANICAL DRAWING<br>units: mm [inch]<br>tolerance: ±0.50 [±0.020]<br>wire range: 24~12 AWG<br>PIN CONNECTIONS 76.00<br>PIN �������� [2.992]<br>1 AC(N)<br>61.60<br>2 AC(L)<br>3 +Vo [2.425]<br>4 -Vo<br>1 3<br>2 4<br>Top View<br>Front View<br>DISCONTINUED<br>31.50 [1.240] 23.00 [0.906]<br>23.96<br>21.20 [0.943]<br>[0.835]<br>8.80<br>[0.346]<br>**----- End of picture text -----**<br> **cui** .com Additional Resources: Product Page **date** 11/11/2022 **page** 5 of 6 **CUI Inc SERIES:** VSK-S5-T **DESCRIPTION:** AC-DC POWER SUPPLY ## **TYPICAL APPLICATION CIRCUIT** **==> picture [560 x 650] intentionally omitted <==** **----- Start of picture text -----**<br> |||||||||||||||||||| |---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---| |Figure 1|Table 1| |Recommended External Circuit Components| |C1|[1]|C2|[1]| |FUSE|NTC|MODEL|NTC|MOV| |C1|C2| |AC|( L)|AC|( L)|+Vo| |VSK-S5-3R3UA-T|1|220|1 A/250 V|12D-5|S14K350| |+| |RL|VSK-S5-5UA-T|1|220|1 A/250 V|12D-5|S14K350| |M OV| |VSK-S5-9UA-T|1|100|1 A/250 V|12D-5|S14K350| |-Vo| |AC|(N)|AC|( N)|VSK-S5-12UA-T|1|100|1 A/250 V|12D-5|S14K350| |VSK-S5-15UA-T|1|100|1 A/250 V|12D-5|S14K350| |VSK-S5-24UA-T|1|47|1 A/250 V|12D-5|S14K350| |Stee| |or above.| |EMC RECOMMENDED CIRCUIT| |Table 2| |Figure 2| |Recommended External Circuit Components| |FUSE|I|L1|LCM|NTC|C1|C2|RL|1A/250V, slow fusing,| |A C ( L)|i|an,AKANW|;\|A C (L)|+Vo|necessary| ||||C Y1||||+|MOV|S14K350| |||MOV|CX|||AC DC| ||||CY1, CY2| |||C Y2||| |!||-Vo|CX| |||/||| |A C (N)|A C (N)|LCM|2.2mH| |ee|||L1| |C1, C2|see Table 1| |Note:|1.|All|specifications|measured|at|Ta=25°C,|humidity|<75%,|nominal|input|voltage,|and|rated|output|load,|unless|otherwise|specified.| |cui|.com| **----- End of picture text -----**<br> **==> picture [178 x 117] intentionally omitted <==** **----- Start of picture text -----**<br> ||| |---|---| |Recommended External Circuit Components| |1A/250V, slow fusing,| |necessary| |MOV|S14K350| |CY1, CY2| |CX| |LCM|2.2mH| |L1| |C1, C2|see Table 1| **----- End of picture text -----**<br> Additional Resources: Product Page **CUI Inc SERIES:** VSK-S5-T **DESCRIPTION:** AC-DC POWER SUPPLY **date** 11/11/2022 **page** 6 of 6 **REVISION HISTORY rev. description date** 1.0 initial release 09/06/2012 1.01 updated mechanical drawing and product photo 11/28/2012 1.02 updated spec 03/08/2013 1.03 updated spec 08/23/2013 1.04 updated spec 01/08/2014 1.05 changed internal IC, updated datasheet 06/05/2015 1.06 company logo updated 10/30/2020 discontinued models VSK-S5-15UA-T, VSK-S5-24UA-T, 1.07 11/11/2022 VSK-S5-3R3UA-T, VSK-S5-9UA-T The revision history provided is for informational purposes only and is believed to be accurate. **Headquarters** 20050 SW 112th Ave. <F CUIINC Tualatin, OR 97062 **cui** .com a bel group **800.275.4899** techsupport@cui.com 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
Updated at April 27, 2026
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