Additional Resources: Product Page date 08/17/2012 page 1 of 5 SERIES: VOF-45 │ DESCRIPTION: AC-DC POWER SUPPLY D FEATURES •up to 45 W continuous power E •industry standard footprint •universal input (85~264 Vac) •single output from 3.3~48 V •user trimmable output voltage U •3000 V isolation •over current, over voltage, and short circuit protections •UL/cUL and TUV 60950-1 safety approvals •efficiency up to 88% N RoHS I MODEL output output output ripple1 effi ciency voltage current Tpower and noise max max max typ (Vdc) (A) (W) (mVp-p) (%) VOF-45-3.3 3.3 6.0 20 50 74 VOF-45-5 5 6.0N 30 50 78 VOF-45-7.5 7.5 5.0 38 75 78 VOF-45-9 9 4.4 40 90 82 VOF-45-12 12 3.7 44 120 84 O VOF-45-15 15 3.0 45 150 85 VOF-45-24 24 1.9 46 240 86 VOF-45-48 48 0.93 45 480 88 Notes: 1.Ripple & noise are measured at 20 MHz BW with 0.1 μF ceramic cap and a 10 μF electrolytic capacitors on the output and the two earth ground pads are connected to Cinput earth ground. PART NUMBER KEY S VOF-45 - XX I Base Number Output Voltage D cui.com

Additional Resources: Product Page CUI Inc │ SERIES: VOF-45 │ DESCRIPTION: AC-DC POWER SUPPLY date 08/17/2012 │ page 2 of 5 INPUT D parameter conditions/description min typ max units 85 264 Vac voltage 120 375 Vdc frequency 47 63 Hz E 110 Vac 1 A input current 220 Vac 0.5 A 110 Vac, full load, cold start 25 A inrush current 220 Vac, full load, cold start U 50 A input fuse built-in, non-user serviceable OUTPUT parameter conditions/description min N typ max units line regulation high line to low line at full load ±0.5 % load regulation full load to 10% load ±1 % temperature coeffi cient ±0.05 %/°C I hold-up time 115 Vac at full load 8 ms adjustability adjustable with built-in trim pot -5 +5 % T switching frequency 60 kHz OUTPUT parameter conditions/description N min typ max units over voltage protection clamped by TVS 115 % over current protection automatically recovers 105 %Io short circuit protection protected, long term short circuit may reduce reliability O SAFETY & COMPLIANCE parameter conditions/description min typ max units primary to secondary for 1 minute 3,000 Vac isolation voltage primCary to transformer core for 1 minute 1,500 Vac primary to ground for 1 minute 1,500 Vac isolation resistance input to output at 500 Vdc at 25°C 50 MΩ safety approvals TUV EN 60950, CE, UL/cUL 60950-1 EMI/EMC S FCC class B, EN 55022 class B leakage current 1.5 mA RoHS compliant yes MTBF according to MIL-HDBK-217F 250,000 hours I ENVIRONMENTAL D parameter conditions/description min typ max units operating temperature see derating curve 0 60 °C storage temperature -20 85 °C operating humidity non-condensing 20 90 % storage humidity non-condensing 20 95 % 10,000 ft operating altitude 3,000 m 30,000 ft storage altitude 9,000 m cui.com

Additional Resources: Product Page CUI Inc │ SERIES: VOF-45 │ DESCRIPTION: AC-DC POWER SUPPLY date 08/17/2012 │ page 3 of 5 DERATING CURVES D 1. output power vs. ambient temperature 2. output power vs. input voltage a. 3.3, 5, 7.5 V models b. all other models all models 100 100 %) 2 %) %) 100 E 80 80 (ctor 60 1 (ctor 60 (ctor 8600 a a a d f 40 d f 40 d f 40 a a a Lo 20 Lo 20 Lo 20 U 0 0 0 0 10 20 30 40 50 60 0 10 20 30 40 50 60 0 85 90 110 220 264 Input Voltage Vac Ambient temperature (°C) Ambient temperature (°C) 1 Convection 1 Forced air (0.5m3 /min) (18 CFM) N 2Forced air (0.5m3 /min) (18 CFM) MATING CONNECTORS I parameter conditions/description ac input (CN1) mates with Molex housing 09-50-3031 witTh Molex 2878 series crimp contact dc output (CN2) mates with Molex housing 09-50-3041 with Molex 2878 series crimp contact N MOUNTING METHOD O C S Horizontal I (performance evaluations conducted under this mounting method) D cui.com

Additional Resources: Product Page CUI Inc │ SERIES: VOF-45 │ DESCRIPTION: AC-DC POWER SUPPLY date 08/17/2012 │ page 4 of 5 MECHANICAL D parameter conditions/description min typ max units dimensions 4 x 2 x 1.44 (102 x 51 x 36.6 mm) inch weight 0.17 kg cooling method free air convection or forced air E MECHANICAL DRAWING U units: mm[inch] 102.0 4.02 tolerance: ±0.3[0.1] 94.01 3.70 N CN1 CN2 LED 1 L 1 -Vo CN1 2 no pin 3 2 -Vo 51.0 2.01 3 N 2 4 3 +Vo 1 I 3CN2 2 4 +Vo 43.21 1.70 1 T N VADJ 3.5 (4 PLCS) MOUNTING HOLE O 32.0 1C.26 B 1.6 0.06 S 3.0 MAX (LEAD) I D cui.com

Additional Resources: Product Page CUI Inc │ SERIES: VOF-45 │ DESCRIPTION: AC-DC POWER SUPPLY date 08/17/2012 │ page 5 of 5 REVISION HISTORY D rev. description date 1.0 initial release 04/03/2009 E 1.01 dimension added to drawing 05/02/2011 1.02 new template applied 05/13/2011 1.03 added MTBF data 09/20/2011 U 1.04 V-Infi nity branding removed 08/17/2012 The revision history provided is for informational purposes only and is believed to be accurate. N I T N O C S I D Headquarters 20050 SW 112th Ave. Fax 503.612.2383 Tualatin, OR 97062 cui.com 800.275.4899 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.