Additional Resources: Product Page | 3D Model
date 09/27/2016
page 1 of 6
SERIES: VOF-185 DESCRIPTION: AC-DC POWER SUPPLY
FEATURES
up to 185 W continuous power
universal input voltage range
industry standard 3 x 5 footprint
power factor correction
low no load power consumption
over voltage, over current, and short circuit protections
output trim
UL/cUL and TUV safety approvals
efficiency up to 85%
3
output output output ripple efficiency
MODEL
1 2
voltage current power and noise
max max max typ
(Vdc) (A) (W) (mVp-p) (%)
VOF-185-12 12 15.42 185 120 85
VOF-185-15 15 12.33 185 150 85
VOF-185-24 24 7.71 185 240 85
VOF-185-36 36 5.14 185 360 85
VOF-185-48 48 3.85 185 480 85
Notes: 1. Maximum output power of 185 W with forced air cooling (8.48 CFM), 111 W with convection cooling.
2. At full load, nominal input, 20 MHz bandwidth oscilloscope, using a 12 twisted pair wire terminated together with a 0.1 F and 47 F capacitor.
3. At full load, 230 Vac input, without external fan.
4. All specifications are measured at Ta=25C, 230 Vac input voltage, and rated output load unless otherwise specified.
PART NUMBER KEY
VOF-185 - XX
Base Number Output Voltage
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CUI Inc SERIES: VOF-185 DESCRIPTION: AC-DC POWER SUPPLY date 09/27/2016 page 2 of 6
INPUT
parameter conditions/description min typ max units
voltage 90 277 Vac
frequency 47 63 Hz
at 115 Vac, full load 2.3 A
current
at 230 Vac, full load 1.2 A
inrush current at 230 Vac, cold start 80 A
leakage current at 264 Vac 3.5 mA
power factor correction at 230 Vac, full load 0.9
no load power consumption at 230 Vac 0.5 W
input fuse 6.3 A / 250 V time delay fuse (included)
OUTPUT
parameter conditions/description min typ max units
initial set point accuracy 3 %
line regulation 0.5 %
load regulation from 100%~10% load 2 %
1 kHz, 100%~10% load
VOF-185-12 1,200 mVp-p
VOF-185-15 1,500 mVp-p
transient response
VOF-185-24 2,400 mVp-p
VOF-185-36 3,600 mVp-p
VOF-185-48 4,800 mVp-p
at 115 Vac 3 s
start-up delay time
at 230 Vac 2.5 s
start-up rise time at 115 Vac, full load 50 ms
hold-up time at 115 Vac, full load 10 ms
adjustability built in trim pot 5 %
swithching frequency 30 300 kHz
temperature coefficient at 0~50C 0.03 %/C
fan output 12 Vdc / 100 mA
PROTECTIONS
parameter conditions/description min typ max units
over voltage protection clamped by TVS
over current protection hiccup, auto recovery 105 %
short circuit protection hiccup, auto recovery 105 %
SAFETY & COMPLIANCE
parameter conditions/description min typ max units
input to output 3,000 Vac
isolation voltage input to ground 1,500 Vac
output to ground 500 Vac
safety approvals UL 60950-1, EN 60950-1, IEC 60950-1
EN 55022: 2010 Class B, EN 61204-3:2000, EN
61000-6-3: 2007 +A1: 2011, EN 61000-3-2:
1
EMI/EMC 2006 +A2: 2009, EN 61000-3-3: 2008, EN 55024:
2010, EN 61000-6-1: 2007, ENV 50204: 1995, CE,
FCC
Notes: 1. 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 directiv es.
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