For more information, please visit the product page | If your application requires forced air, view our Dc Fans date 10/16/2018 page 1 of 5 SERIES: VOF-70B DESCRIPTION: AC-DC POWER SUPPLY FEATURES * * * * * safety Class II design industry standard 2" x 4" footprint no-load power consumption < 0.3 W EN 55032 Class B radiated emissions 5k meters high altitude operation MODEL output voltage output current output power ripple and noise1 efficiency2 (Vdc) max (A) max (W) max (mVp-p) typ (%) VOF-70B-12 12 5.84 70 120 87 VOF-70B-24 24 2.92 70 240 89 VOF-70B-48 48 1.46 70 300 89 Notes: 1. Measured at output within 20 MHz BW, at rated line voltage and output load, with a 10 F tantalum and a 0.1 F ceramic capacitor across the output. 2. At 230 Vac. PART NUMBER KEY VOF-70B - XX Base Number Output Voltage cui.com For more information, please visit the product page | If your application requires forced air, view our Dc Fans CUI Inc SERIES: VOF-70B DESCRIPTION: AC-DC POWER SUPPLY date 10/16/2018 page 2 of 5 INPUT parameter conditions/description min voltage typ 90 frequency 47 max units 264 Vac 63 Hz current at 115 Vac at 230 Vac 1.8 0.9 A A inrush current at 230 Vac, cold start, 25 C 90 A leakage current at 264 Vac, 63 Hz no load power consumption at 110 Vac at 230 Vac 0.25 mA 0.2 0.3 W W max units OUTPUT parameter conditions/description min initial set point accuracy typ 3 line regulation at full load load regulation at 10% to full load 1 adjustability built in trim pot 5 start-up time at 100 Vac, full load rise time at 100 Vac, full load hold-up time at 115 Vac, full load 10 switching frequency at full load 60 % 0.5 % % % 1 50 s ms ms temperature coefficient 85 kHz 0.04 %/C max units 130 % max units PROTECTIONS parameter conditions/description min over voltage protection latch off 110 over current protection auto recovery short circuit protection auto recovery over temperature protection latch off typ SAFETY & COMPLIANCE parameter conditions/description isolation voltage input to output safety approvals UL 62368-1, EN 62368-1, IEC 62368-1 safety class Class II conducted emissions EN 55032 Class B, FCC Class B radiated emissions EN 55032 Class B, FCC Class B input current harmonics EN 61000-3-2 Class A voltage fluctuation and flicker EN 61000-3-3 ESD immunity EN 61000-4-2, air: 8 kV; contact: 4 kV contact radiated field immunity EN 61000-4-3, 3 V/m electrical fast transient immunity EN 61000-4-4, 2 kV Notes: min typ 3,000 Vac 3. The power supply is considered a component which will be installed into final equipment. The final equipment still must be tested to meet the necessary EMC directives. cui.com For more information, please visit the product page | If your application requires forced air, view our Dc Fans CUI Inc SERIES: VOF-70B DESCRIPTION: AC-DC POWER SUPPLY date 10/16/2018 page 3 of 5 SAFETY & COMPLIANCE (CONTINUED) parameter conditions/description surge immunity EN 61000-4-5, 2 kV diff, 4 kV com conducted immunity EN 61000-4-6, 3 Vrms magnetic field immunity EN 61000-4-8, 50 Hz, 1 A/m (rms), Class A voltage dips, interruptions EN 61000-4-11: voltage dips 30% reduction for 500 ms, Class A voltage dips >95% reduction for 10 ms, Class A voltage dips >95% reduction for 5000 ms, Class B MTBF as per MIL-HDBK-217F, 25C, full load RoHS yes Notes: min typ max units 350,000 hours 4. The power supply is considered a component which will be installed into final equipment. The final equipment still must be tested to meet the necessary EMC directives. ENVIRONMENTAL parameter conditions/description min operating temperature see derating curves storage temperature operating humidity max units -20 70 C -40 85 C 95 % 5,000 m non-condensing typ 5 altitude DERATING CURVES Output Load vs. Ambient Temperature 100 100 80 80 Load (%) Load (%) Output Load vs. Input Voltage 60 40 40 20 20 90 60 50 120 150 180 210 240 -20 264 -10 0 10 20 30 40 50 Ambient Temperature (C) Input Voltage (Vac) EFFICIENCY CURVES VOF-70B-12 Efficiency vs. Output Load (Natural Convection) VOF-70B-24 Efficiency vs. Output Load (Natural Convection) cui.com 60 70 For more information, please visit the product page | If your application requires forced air, view our Dc Fans CUI Inc SERIES: VOF-70B DESCRIPTION: AC-DC POWER SUPPLY date 10/16/2018 page 4 of 5 EFFICIENCY CURVES (CONTINUED) VOF-70B-48 Efficiency vs. Output Load (Natural Convection) MECHANICAL parameter conditions/description dimensions 101.6 x 50.8 x 31.6 (4.0 x 2.0 x 1.24 inch) min weight typ natural convection CN100 input connector CN100 mates with Jowle A3961H02-3P, crimp pin A3961T2P-2C, or Molex 09-50-3031, crimp pin 2478 series CN200 output connector CN200 mates with Jowle A3961H02-4P, crimp pin A3961T2P-2C, or Molex 09-50-3041, crimp pin 2478 series MECHANICAL DRAWING units: mm tolerance: X30: 0.25 mm 30<X100: 0.35 mm 100<X300: 0.50 mm holes: 0.20 mm CN100 Connector PIN Function 1 AC(L) 2 NP 3 AC(N) CN200 Connector PIN Function 1 +V 2 +V 3 RTN 4 RTN cui.com units mm 152 cooling max g For more information, please visit the product page | If your application requires forced air, view our Dc Fans CUI Inc SERIES: VOF-70B DESCRIPTION: AC-DC POWER SUPPLY date 10/16/2018 page 5 of 5 REVISION HISTORY rev. 1.0 description date initial release 10/16/2018 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 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 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.