Additional Resources: Product Page 3D Model date 04/27/2021 page 1 of 4 SERIES: VSBU-120-D DESCRIPTION: AC-DC POWER SUPPLY FEATURES up to 120 W continuous power industry standard 3 x 5 footprint universal input 90~260 Vac dual output active power correction internal EMI filter no minimum load required input surge current, over voltage, over load, and over current protections efficiency 80% RoHS output output output ripple and efficiency MODEL voltage current power noise max max max typ (Vdc) (A) (W) (mVp-p) (%) Vo1 3.3 15 79.5 66 80 VSBU-120-D305 Vo2 5 6 79.5 50 80 Vo1 3.3 15 120 66 80 VSBU-120-D312 Vo2 12 6 120 120 80 Vo1 5 15 120 50 80 VSBU-120-D512 Vo2 12 6 120 120 80 Vo1 5 15 120 50 80 VSBU-120-D515 Vo2 15 6 120 150 80 Vo1 5 15 120 50 80 VSBU-120-D524A Vo2 24 3.5 120 240 80 Vo1 5 15 120 50 80 VSBU-120-D524B Vo3 -24 2 120 -240 80 Vo1 28 3.92 120 280 80 VSBU-120-D285 Vo3 5 2 120 50 80 PART NUMBER KEY VSBU-120 -DXXXXX - X Base Number Output Voltage Power Fail Detect Blank = No P = Yes cui.comAdditional Resources: Product Page 3D Model CUI Inc SERIES: VSBU-120-D DESCRIPTION: AC-DC POWER SUPPLY date 04/27/2021 page 2 of 4 INPUT parameter conditions/description min typ max units voltage 90 260 Vac frequency 47 63 Hz at 115 Vac, full load 1.7 A current at 230 Vac, full load 1.0 A at 115 Vac, 25C, full load, cold start 30 37 A inrush current at 230 Vac, 25C, full load, cold start 65 75 A power factor correction full load at 90 ~ 260 Vac 0.95 0.97 1.0 OUTPUT parameter conditions/description min typ max units line regulation full load 0.5 1 % load regulation at 230 Vac 3 5 % temperature coefficient all output -0.04 0.04 %/C transient response full load to half load at 100 Vac 4 ms start-up full load at 100 Vac 0.3 1 2 s hold-up full load at 110 Vac 16 ms PROTECTIONS parameter conditions/description min typ max units over voltage protection 112 132 % over current protection 110 150 % SAFETY & COMPLIANCE parameter conditions/description min typ max units primary to secondary 4,242 Vdc isolation voltage primary to earth ground 2,121 Vdc isolation resistance test voltage of 500 Vdc 50 M safety approvals UL 60950-1 2nd edition, EN 60950-1 2nd edition EMI/EMC CISPR 22 class B, FCC part-15 class B leakage current full load at 240 Vac 0.4 0.75 mA RoHS compliant yes MTBF MIL-HDSK-217F, 25C ambient 100,000 hrs ENVIRONMENTAL parameter conditions/description min typ max units operating temperature 0 70 C storage temperature -40 85 C operating humidity non-condensing 5 95 % storage humidity 0 75 % cui.com