NFN25 SERIES
Dual and triple output
• 85VAC to 264VAC unive rs al input range
• 120VDC to 370VDC input voltage range
• Fixe d fre que ncy ope ration
• Ove rvoltage prote ction (+5V output)
• Me e ts EN55022 limit B and FCC part 15 limit B line
conducte d nois e
• VDE, UL and CSA approve d
The NFN25 Series of universal input, 25 Watt switching power supplies are
mechanically equivalent to the industry standard NFS40, but are optimised for
operation at lower output power levels. The NFN25 Series uses an advanced,
fixed frequency design which further reduces the line-conducted noise below
EN55022 and FCC limit B and specifies a much lower leakage current. The
supplies deliver 25W continuous, 35W peak and regulate to zero load. NFN25
Series power supplies are particularly suitable for telecoms applications such as
modems, PABX’s and networking systems.
[ 2 YEAR WARRANTY ]
SPECIFICATION All specifications are typical at nominal input, full load at 25°C unless otherwise stated
OUTPUT SPECIFICATIONS
ELECTROMAGNETIC COMPATIBILITY SPECIFICATIONS CON’T
Output power
Continuous
25W
35W
Conducted emissions
Radiated emissions
ESD air
EN55022, level B
Peak (60s)
EN55022, level B
EN61000-4-2, level 3
EN61000-4-2, level 4
EN61000-4-5, level 3
EN61000-4-4, level 3
EN61000-4-3, level 3
EN61000-4-6, level 3
Perf. criteria 1
Perf. criteria 1
Perf. criteria 1
Perf. criteria 1
Perf. criteria 2
Perf. criteria 1
Line regulation
LL to HL, FL
Main output (Output 1)
Output 2
Output 3
±0.2% , max.
±1% , max.
±0.2% , max.
ESD contact
Surge
Fast transients
Radiated immunity
Conducted immunity
Total regulation
(See Note 4)
Main output (Output 1)
Auxilliary output
Auxilliary output
±2.0% , max.
see table
see table
GENERAL SPECIFICATIONS
Overshoot/undershoot At turn-on
0%
Hold-up time
110VAC input
16ms
80ms
230VAC input
Transient response
+5V
(1.5 to 3A step)
±120mV max. dev.
500µs recovery
Efficiency
25W output
70% typical
Temperature coefficient All outputs
Overvoltage protection +5V output
±0.02% /°C, max.
6.25V ±0.75V
Isolation voltage
Input/output
Input/chassis
3000VAC
1500VAC
Switching frequency
Fixed, 45kHz ±5kHz
Output power limit
Primary power
limited
60W Pin limit, max.
35W Pin limit, min.
Approvals and
standards
IEC950, IEC1010, EN60950
UL1950, VDE0805, BABT
CSA C22.2 No. 950
Short circuit protection
INPUT SPECIFICATIONS
Input voltage range
Continuous
Weight
MTBF
280g (9.6oz)
85 to 264VAC
120 to 370VDC
MIL-HDBK-217E, 25°C 170,000 hours
ENVIRONMENTAL SPECIFICATIONS
Input frequency range
Input surge current
47 to 440Hz
Thermal performance
0°C to 50°C ambient,
convection cooled
25W max.
110VAC, cold start
230VAC, cold start
15A max.
32A max.
50°C to +70°C ambient
convection cooled
Peak (0°C to +50°C,
max. 60 seconds)
Derate to
50% load
Safety ground
leakage current
132VAC, 60Hz
264VAC, 50Hz
155µA, max.
261µA, max.
35W
Non-operating
–40°C to +85°C
5% to 95% RH
Data Sheet © Artesyn Technologies
®
2000
The information and specifications contained in this data sheet are believed to be correct at
time of publication. However, Artesyn Technologies accepts no responsibility for consequences
arising from printing errors or inaccuracies. Specifications are subject to change without notice.
No rights under any patent accompany the sale of any such product(s) or information contained
herein.
Relative humidity
Altitude
Non-condensing
Operating
Non-operating
10,000 feet max.
30,000 feet max.
Vibration
Random vibration 2.4G rms approx.
Three orthogonal axes 5Hz to 500Hz
10 min. test per axis
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