Additional Resources: Product Page | 3D Model
date 10/21/2018
page 1 of 5
SERIES: VMS-365 DESCRIPTION: AC-DC POWER SUPPLY
FEATURES
up to 365 W continuous power
industry standard 3" x 5" footprint
3
18 W/in power density
universal input (85-264 Vac / 125-373 Vdc)
single output from 12 to 48 V
active power correction (98%)
12 V auxiliary fan output, 5 V standby
no minimum load required
over load, over voltage, and short circuit protections
full medical and ITE safety approvals
efficiency up to 90%
V
D E
output output output ripple and efficiency
MODEL
1 2
voltage current power noise
max max max typ
(Vdc) (A) (W) (mVp-p) (%)
VMS-365-12 12 30.4 365 120 90
VMS-365-24 24 15.2 365 240 90
VMS-365-48 48 7.6 365 480 90
Notes: 1. Total continuous output power will not exceed 365 W forced air (400 LFM), 200 W without fan
2. Measured at 20 MHz, twisted pair with 0.47 F ceramic and 22 F tantalum parallel capacitors
PART NUMBER KEY
VMS-365 - XX
Base Number Output Voltage
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CUI Inc SERIES: VMS-365 DESCRIPTION: AC-DC POWER SUPPLY date 10/21/2018 page 2 of 5
INPUT
parameter conditions/description min typ max units
90 264 Vac
voltage
125 373 Vdc
frequency 47 63 Hz
at 90 Vac, cold start 5 A
current
at 180 Vac, cold start 2.5 A
inrush current no damage at 230 Vac, full load, cold start
measured at full load and 115 Vac/60 Hz and
230 Vac/50 Hz input source, coming impedance
power factor 0.9 0.98
will be less than 0.25, compliant to EN61000-3-2
for harmonic currents
OUTPUT
parameter conditions/description min typ max units
line regulation low line to high line 1 %
all other outputs 1 %
load regulation 12 V aux. output 15 %
5 V SB 5 %
temperature coefficient 0.25 mV/C
transient response 25% I to I , 0.1 A/s slew rate, 5% max. deviation, 10 ms recovery
max max
start-up time 500 ms
rise time 0.2 20 ms
hold-up time 115 Vac /60 Hz 16.6 ms
adjustability 5 %
fan drive 12 Vdc / 500 mA for external fan
standby 5 Vdc, 2A (400 LFM forced air) / 1A (convection)
PROTECTIONS
parameter conditions/description min typ max units
over voltage protection 130 %
over current protection automatically recovers 150 %
short circuit protection auto recovery with no damage from a short on any output
SAFETY & COMPLIANCE
parameter conditions/description min typ max units
primary to secondary (for 1 second): 5,656 Vdc
isolation voltage
primary to earth ground (for 1 second): 5,656 Vdc
safety approvals UL 60950-1/60601-1, VDE EN60950-1/EN60601-1,
EN55022:1998 (CISPR 22 class A conducted),
EN61000-3-2: 2000, EN61000-3-3: A1:2001,
EMI/EMC EN55024 (IEC61000-4-2: 1995, IEC61000-4-3: 1995,
IEC61000-4-4: 1995, IEC61000-4-5: 1995,
IEC61000-4-6: 1996, IEC61000-4-11: 1994), CE
measured per IEC 60950-1, paragraph 5.1,
leakage current test voltage of 120 Vac/60 Hz 0.110 mA
test voltage of 230 Vac / 60 Hz 0.275 mA
with 400 LFM forced air, MIL-HDBK-217E-1, 75%
MTBF 300,000 hrs
of rated full load, 25C ambient
RoHS 2011/65/EU
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