For more information, please visit the product page. date 10/26/2015 page 1 of 5 SERIES: VSK-S1 │ DESCRIPTION: AC-DC POWER SUPPLY FEATURES • • • • • • • up to 1 W continuous power compact board mount design universal input (85~305 Vac / 120~430 Vdc) single output from 3.3~24 Vdc over current and short circuit protection UL/cUL and CE safety approvals efficiency up to 75% MODEL output voltage output current output power ripple and noise1 efficiency (Vdc) max (mA) max (W) max (mVp-p) typ (%) 3.3 300 1 200 63 VSK-S1-5U 5 200 1 200 68 VSK-S1-9U 9 111 1 200 72 VSK-S1-12U 12 83 1 200 73 VSK-S1-15U 15 67 1 200 74 VSK-S1-24U 24 42 1 200 75 VSK-S1-3R3U Notes: 1. At full load 20 MHz bandwidth oscilloscope, see Test Configuration section. PART NUMBER KEY VSK-S1 - XX U Base Number Output Voltage cui.com For more information, please visit the product page. CUI Inc │ SERIES: VSK-S1 │ DESCRIPTION: AC-DC POWER SUPPLY date 10/26/2015 │ page 2 of 5 INPUT parameter conditions/description min voltage frequency current at 115 Vac at 230 Vac inrush current at 115 Vac at 230 Vac max units 85 120 typ 305 430 Vac Vdc 47 63 Hz 37 21 mA mA 7 14 leakage current no load power consumption A A 0.15 mA 0.2 W max units 4,000 2,200 1,000 680 μF μF μF μF OUTPUT parameter conditions/description min typ maximum capacitive load 3.3 and 5 Vdc output models 9 and 12 Vdc output models 15 Vdc output model 24 Vdc output model line regulation at full load ±2 % load regulation at 10 ~ 100% load ±5 % voltage accuracy 3.3 Vdc model all other models ±6 ±5 % % switching frequency 100 kHz max units PROTECTIONS parameter conditions/description min over current protection auto restart 110 short circuit protection continuous, auto restart typ % SAFETY & COMPLIANCE parameter conditions/description min typ isolation voltage input to output for 1 minute safety approvals UL 60950-1 safety class class II conducted/radiated emissions CISPR22/EN55022 Class B ESD IEC/EN61000-4-2 class B, contact ±4kV, air ±8kV radiated immunity IEC/EN61000-4-3 class A, 10V/m EFT/burst IEC/EN61000-4-4 class B, ±2kV (external circuit required, see figure 3) surge IEC/EN61000-4-5 class B, ±2kV (external circuit required, see figure 3) conducted immunity IEC/EN61000-4-6 class A, 10 Vr.m.s PFM IEC/EN61000-4-8 class A, 10 A/m voltage dips & interruptions IEC/EN61000-4-11 class B, 0%-70% MTBF as per MIL-HDBK-217F, 25°C RoHS 2011/65/EU max 3,000 units Vac 300,000 hours ENVIRONMENTAL parameter conditions/description min max units operating temperature see derating curves -25 70 °C -25 storage temperature typ 85 °C operating humidity non-condensing 90 % storage humidity non-condensing 95 % cui.com For more information, please visit the product page. CUI Inc │ SERIES: VSK-S1 │ DESCRIPTION: AC-DC POWER SUPPLY date 10/26/2015 │ page 3 of 5 DERATING/EFFICIENCY CURVES output power vs. ambient temperature output power vs. input voltage (25°C) (85~305 Vac; 120~430 Vdc) 60 50 40 20 ~ ~ ~ ~ 100 80 Load (%) Load (%) 100 80 60 40 -25 -10 55 ~ ~ ~ ~ 20 70 85 120 Ambient Temperature (°C) 305 430 Input Voltage (Vac/Vdc) efficiency vs. output power (Vin=230 Vac) efficiency vs. input voltage (full load) 90 90 80 85 VSK-S1-24U VSK-S1-12U VSK-S1-5U 70 Efficiency (%) Efficiency (%) 100 140 60 50 40 30 20 80 75 VSK-S1-24U VSK-S1-12U VSK-S1-5U 70 65 60 55 10 50 10 20 30 40 50 60 70 80 90 100 85 120 Load (%) 220 240 264 305 Input Voltage (Vac) MECHANICAL parameter conditions/description dimensions 33.70 x 22.20 x 18.00 (1.327 x 0.874 x 0.708 inch) min case material UL94V-0 typ max mm weight 20 g MECHANICAL DRAWING >@ units: mm [inches] tolerance: ±0.50 [±0.020] pin section tolerance: ±0.10 mm [±0.004] -Vo 4 +Vo >@ Fro nt vie w ∅1.10[0.43] >@ >@ 1 2 4 1 4 2 3 >@ 3 >@ Recommended PCB Layout Top View Bo tt o m vie w cui.com >@ 3 >@ AC(L) >@ AC(N) 2 >@ 1 >@ FUNCTION >@ PIN >@ PIN CONNECTIONS units For more information, please visit the product page. CUI Inc │ SERIES: VSK-S1 │ DESCRIPTION: AC-DC POWER SUPPLY date 10/26/2015 │ page 4 of 5 TEST CONFIGURATION AC(L) Copper sheet FUSE AC(L) Figure 1 +Vo AC/DC AC( N) AC(N) C2 C1 Connect Oscillograph Probe Load -Vo Table 1 12. 7m m 25. 4m m 25. 4m m External components C1 1μF ceramic C2 10μF electrolytic TYPICAL APPLICATION CIRCUIT AC (L) NTC FUSE CX M OV Figure 2 AC (N) AC (L) +Vo C1 C2 TVS + AC / DC RL AC (N) -Vo Table 2 Recommended external circuit components Model FUSE MOV NTC R1 CY3, CY4 CX LCM TVS1 C12 C23 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 EMC RECOMMENDED CIRCUIT AC (L) Figure 3 FUSE R1 CY3 M OV CY4 LCM AC (L) CX AC / DC AC (N) Notes: +Vo AC (N) C1 C2 + TVS RL -Vo 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 filter 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 specifications are measured at rated input voltage, rated output load, TA=25°C, and humidity < 75% unless otherwise specified. cui.com For more information, please visit the product page. CUI Inc │ SERIES: VSK-S1 │ DESCRIPTION: AC-DC POWER SUPPLY date 10/26/2015 │ page 5 of 5 REVISION HISTORY 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 internal inductor & PCB structure changed 10/26/2015 1.03 The revision history provided is for informational purposes only and is believed to be accurate. Headquarters 20050 SW 112th Ave. Tualatin, OR 97062 800.275.4899 Fax 503.612.2383 cui.com [email protected] 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.