Additional Resources: Product Page 3D Model date 06/11/2015 page 1 of 7 SERIES: VSK-S25-T DESCRIPTION: AC-DC POWER SUPPLY FEATURES up to 25W continuous power compact chassis mount design universal input (85~264 Vac / 100~370 Vdc) single, regulated output from 5~48 Vdc over voltage, over current, and short circuit protections UL/cUL safety approvals efficiency up to 87% output output output ripple efficiency MODEL 1 voltage current power and noise max max typ typ (Vdc) (A) (W) (mVp-p) (%) VSK-S25-5U-T 5 4.1 20.5 50 79 VSK-S25-9U-T 9 2.5 22.5 50 81 VSK-S25-12U-T 12 2.1 25 50 83 VSK-S25-15U-T 15 1.6 25 50 84 VSK-S25-24U-T 24 1.1 25 50 85 VSK-S25-48U-T 48 0.5 25 50 87 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. PART NUMBER KEY VSK-S25 - XXU - T Base Number Output Voltage cui.comAdditional Resources: Product Page 3D Model CUI Inc SERIES: VSK-S25-T DESCRIPTION: AC-DC POWER SUPPLY date 06/11/2015 page 2 of 7 INPUT parameter conditions/description min typ max units 85 264 Vac voltage 100 370 Vdc frequency 47 63 Hz at 115 Vac 600 mA current at 230 Vac 340 mA at 115 Vac 16 A inrush current at 230 Vac 30 A leakage current at 230 Vac, 50 Hz (RMS) 0.1 mA input fuse 3.15 A/250 V, slow-blow type (included on chassis) OUTPUT parameter conditions/description min typ max units 5 Vdc output model 12,000 F 9 Vdc output model 5,600 F 12 Vdc output model 5,400 F capacitive load 15 Vdc output model 2,400 F 24 Vdc output model 1,400 F 48 Vdc output model 800 F line regulation at full load 0.5 % load regulation at 10~100% load 1 % voltage set accuracy 2 % adjustability 10 % at 115 Vac 15 ms hold-up time at 230 Vac 80 ms switching frequency 65 kHz temperature coefficient 0.02 %/C PROTECTIONS parameter conditions/description min typ max units over current protection auto restart 110 % short circuit protection continuous, auto restart 5 Vdc output model 7.5 Vdc 9 Vdc output model 12 Vdc 12 Vdc output model 20 Vdc over voltage protection 15 Vdc output model 20 Vdc 24 Vdc output model 30 Vdc 48 Vdc output model 60 Vdc SAFETY & COMPLIANCE parameter conditions/description min typ max units input to output for 1 minute 3,000 Vac isolation voltage input to ground for 1 minute 2,000 Vac safety approvals UL60950-1, CE safety class class I conducted emissions CISPR22/EN55022, Class B radiated emissions CISPR22/EN55022, Class B ESD IEC/EN61000-4-2 Class B, contact 6 kV/air 8 kV radiated immunity IEC/EN61000-4-3 Class A, 10V/m IEC/EN61000-4-4 Class B, 2 kV EFT/burst IEC/EN61000-4-4 Class B, 4 kV (external circuit required, see figure 2) cui.com