Additional Resources: Product Page 3D Model date 04/27/2021 page 1 of 4 SERIES: VSBU-120 DESCRIPTION: AC-DC POWER SUPPLY FEATURES up to 120 W continuous power industry standard 3 x 5 footprint universal input 90~260 Vac single output from 3.3~48 V 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 range max max max typ (Vdc) (A) (W) (mVp-p) (%) VSBU-120-3.3 3~5 22 73 66 80 VSBU-120-5 5~6 22 110 50 80 VSBU-120-7.5 6~9 15.3 115 75 80 VSBU-120-9 9~11 13.33 120 90 80 VSBU-120-12 11~13 10 120 120 80 VSBU-120-15 13~16 8 120 150 80 VSBU-120-18 16~21 6.67 120 180 80 VSBU-120-24 21~27 5 120 240 80 VSBU-120-30 27~33 4 120 300 80 VSBU-120-36 33~40 3.33 120 360 80 VSBU-120-48 40~50 2.5 120 480 80 PART NUMBER KEY VSBU-120 - XX - X Base Number Output Voltage Power Fail Detect Blank = No P = Yes cui.comAdditional Resources: Product Page 3D Model CUI Inc SERIES: VSBU-120 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 corrections 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