cui.com
date 09/01/2017
page 1 of 7
SERIES: VOF-350 │ DESCRIPTION: AC-DC POWER SUPPLY
MODEL output
voltage
output
current
output
power1,2
ripple
and noise3,4
efciency
(Vdc)
max
(A)
max
(W)
max
(mVp-p)
typ
(%)
VOF-350-12 12 25.005300 120 92
VOF-350-15 15 21.675325 150 92
VOF-350-24 24 14.58 350 240 93
VOF-350-30 30 11.67 350 300 93
VOF-350-48 48 7.30 350 480 94
VOF-350-58 58 6.04 350 580 94
Notes: 1. Maximum output power with 13 CFM forced air cooling. See derating curves for full performance details.
2. Combined output power of main output and fan supply shall not exceed the max power rating.
3. Ripple is peak to peak with 20 MHz bandwidth and 10 µF tantalum capacitor in parallel with a 0.1 µF capacitor at rated line voltage and load ranges.
4. Output ripple can be more than 10% of the output voltage at -40°C.
5. With header type output connector, VOF-350-12 max current is 18.75 A (225 W) and VOF-350-15 max current is 18 A (270 W) with 13 CFM forced air cooling.
6. All specications are measured at Ta=25°C, nominal input voltage, and rated output load unless otherwise specied.
FEATURES
• up to 350 W continuous power
• -40°C to 70°C operating temperature
• industry standard foot print 3” x 5”
• low profile 1”
• power factor correction
• 12 V/0.5 A fan output
• standby power <0.5 W
• efficiency up to 94%
• long life electrolytic capacitors
PART NUMBER KEY
Base Number
VOF-350 - XX - X
Output Voltage
Output Connections:
“blank” = screw type
1 = header type
For more information, please visit the product page | If your application requires forced air, view our Dc Fans
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date 09/01/2017 │ page 2 of 7CUI Inc │ SERIES: VOF-350 │ DESCRIPTION: AC-DC POWER SUPPLY
INPUT
parameter conditions/description min typ max units
voltage 90 264 Vac
frequency 47 63 Hz
current at 115 Vac, full load
at 230 Vac, full load
3.6
1.8
A
A
inrush current at 230 Vac, cold start 45 A
leakage current at 230 Vac 0.3 mA
power factor at full load 0.95
no load power consumption 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 ±1 %
line regulation ±0.5 %
load regulation from 100% to 10% load ±0.5 %
start-up delay time 2 s
rise time at 115/230 Vac 55 ms
hold-up time at 115/230 Vac 8 ms
adjustability built in trim pot ±3 %
switching frequency 50 300 kHz
transient response
25% step load change, at 0.1 A/µS slew rate, 50%
duty cycle, 50/60 Hz, max excursion 4%, recovery
time 5 ms
temperature coefcient at 0~50°C ±0.05 %/°C
fan output112 Vdc / 500 mA
Notes: 1. Fan supply output voltage tolerance including set point accuracy, line and load regulation is ±10% and ripple and noise is less than 10%.
PROTECTIONS
parameter conditions/description min typ max units
over voltage protection hiccup, auto recovery 110 140 %
over current protection hiccup, auto recovery 110 %
short circuit protection hiccup, auto recovery
over temperature protection goes into hiccup mode when the temperature of
the PCB exceeds 110±10°C, auto recovery
SAFETY & COMPLIANCE
parameter conditions/description min typ max units
isolation voltage input to output
input to ground
3,000
1,500
Vac
Vac
safety approvals
EN 60950-1, IEC 60950-1 (ed.2), UL 60950
(ed.2), CSA C22.2 No. 60950-1 (ed.2), Class 1
SELV complies with LVD directive
safety class class I
conducted emissions EN 55032 Class B
radiated emissions EN 55032 Class B (to be controlled in end system with external
core (King core K5B RC 25 x 12 x 15-M in input cable (5 turns))
input current harmonics EN 61000-3-2, class D
voltage uctuation and icker EN 61000-3-3, pass
Notes: 2. The power supply is considered a component which will be installed into nal equipment. The nal equipment still must be tested to meet the necessary EMC directives.
For more information, please visit the product page | If your application requires forced air, view our Dc Fans
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date 09/01/2017 │ page 3 of 7CUI Inc │ SERIES: VOF-350 │ DESCRIPTION: AC-DC POWER SUPPLY
SAFETY & COMPLIANCE
parameter conditions/description min typ max units
ESD immunity EN 61000-4-2, level 3, criterion A
radiated eld immunity EN 61000-4-3, level 3, criterion A
electrical fast transient
immunity EN 61000-4-4, level 3, criterion A
surge immunity EN 61000-4-5, level 3, criterion A
conducted immunity EN 61000-4-6, level 3, criterion A
magnetic eld immunity EN 61000-4-8, level 3, criterion A
voltage dips, interruptions EN 61000-4-11, criterion A & B
MTBF as per Telcordia-SR332-issue 3 3,370,000 hours
RoHS 2011/65/EU
Notes: 1. The power supply is considered a component which will be installed into nal equipment. The nal equipment still must be tested to meet the necessary EMC directives.
ENVIRONMENTAL
parameter conditions/description min typ max units
operating temperature see derating curves -40 70 °C
storage temperature -40 85 °C
operating humidity non-condensing 20 90 %
storage humidity non-condensing 20 90 %
operating altitude 16,000 ft
DERATING CURVES
Output Power vs. Input Voltage
Input Voltage (Vac)
Output Power (%)
90
0
10
20
30
40
50
60
70
80
90
100
95 100 105 110 115 120 125 255 260 264
Ambient Temperature (°C)
Output Power (W)
-40 -30 -20 -10 0 10 20 30 40 50 60 70
0
Screw Type Forced Air (13 CFM)
Natural Convection
25
50
75
100
125
150
175
200
225
250
275
300
Header Type Forced Air (13 CFM)
12 Vdc Output Model
Output Power vs. Ambient Temperature
For more information, please visit the product page | If your application requires forced air, view our Dc Fans
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date 09/01/2017 │ page 4 of 7CUI Inc │ SERIES: VOF-350 │ DESCRIPTION: AC-DC POWER SUPPLY
DERATING CURVES (CONTINUED)
15 Vdc Output Model
Output Power vs. Ambient Temperature
Ambient Temperature (°C)
Output Power (W)
-40 -30 -20 -10 0 10 20 30 40 50 60 70
0
Screw Type Forced Air (13 CFM)
Natural Convection
25
50
75
100
125
150
175
200
225
250
275
300
325
Header Type Forced Air (13 CFM)
Ambient Temperature (°C)
Output Power (W)
-40 -30 -20 -10 0 10 20 30 40 50 60 70
25
Forced Air (13 CFM)
Natural Convection
50
75
100
125
150
175
200
225
250
275
300
325
350
0
All other Output Models
Output Power vs. Ambient Temperature
For more information, please visit the product page | If your application requires forced air, view our Dc Fans
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date 09/01/2017 │ page 5 of 7CUI Inc │ SERIES: VOF-350 │ DESCRIPTION: AC-DC POWER SUPPLY
MECHANICAL
parameter conditions/description min typ max units
dimensions 5.00 x 3.00 x 1.00 (127.00 x 76.20 x 25.40 mm) inch
weight 400 g
cooling external fan
J1 input connector Mates with JST housing VHR-3M; pins SVH-41T-P1.1 or equivalent
J2 output connector
Screw Type: Accepts ring tongue terminal AMP 8-31886-1 for max 16 AWG wire up to 11 A. Use
multiple terminals for higher currents.
Header Type: Mates with JST housing VHR-8M; pins SVH-41T-P1.1 or equivalent
J3 fan connector Mates with Tyco 640440-2
MECHANICAL DRAWINGS
J1
PIN Function
1 L
2 NC
3 N
J2
PIN Function
1 +VE
2-VE
J3
PIN Function
1 +FAN
2 -FAN
Screw Type
units: inch [mm]
tolerance: ±0.04 [±1.0]
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date 09/01/2017 │ page 6 of 7CUI Inc │ SERIES: VOF-350 │ DESCRIPTION: AC-DC POWER SUPPLY
Header Type
units: inch [mm]
tolerance: ±0.04 [±1.0]
MECHANICAL DRAWINGS (CONTINUED)
J1
PIN Function
1 L
2 NC
3 N
J2
PIN Function
1 +VE
2 +VE
3 +VE
4 +VE
5-VE
6-VE
7-VE
8-VE
J3
PIN Function
1 +FAN
2 -FAN
For more information, please visit the product page | If your application requires forced air, view our Dc Fans
date 09/01/2017 │ page 7 of 7CUI Inc │ SERIES: VOF-350 │ DESCRIPTION: AC-DC POWER SUPPLY
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.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
cui.com
techsupport@cui.com
rev. description date
1.0 initial release 09/01/2017
The revision history provided is for informational purposes only and is believed to be accurate.
REVISION HISTORY
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