NFS40 and NFN40 SERIES
Single and triple output
• 5.0 x 3.0 x 1.2 inch package (1U applications )
• Indus try s tandard package
• Ove rvoltage and s hort circuit prote ction
• 40W with fre e air conve ction
• Fixe d fre que ncy ope ration (NFN Se rie s )
• NFS40: EN55022, EN55011 conducte d e mis s ions le ve l A
• NFN40: EN55022, EN55011 conducte d e mis s ions le ve l B
• UL, VDE and CSA s afe ty approvals
The NFS40 and NFN40 are industry standard 40 Watt power supplies with the
capability to supply 50W in a forced air ambient and to automatically operate
from any voltage between 85VAC and 264VAC. Use of MOSFET based
switching circuits allows for enhanced features such as output regulation down
to zero load (NFN40). Universal input voltage eliminates the need to change
jumpers or switch settings to cater for different or widely varying line voltages.
In addition to the input voltage range, VDE, UL, CSA, EN60950 and IEC950
approvals make the NFS40 and NFN40 ideal for use in equipment installed
throughout the world. The fixed frequency operation of the NFN40 further
reduces emissions below VDE class B and significantly reduces leakage current.
These low profile switchers with high power density are intended for use in
small, digital systems.
[ 2 YEAR WARRANTY ]
SPECIFICATION All specifications are typical at nominal input, full load at 25°C unless otherwise stated
OUTPUT SPECIFICATIONS
GENERAL SPECIFICATIONS
Output voltage
adjustability
+5V output on triples
Vout on singles
±5.0%
±5.0%
Hold-up time
110VAC, 40 Watts
230VAC, 40 Watts
14ms
110ms
Line regulation
LL to HL, FL
Main output
±0.2%
±1.0%
Efficiency
70% typical
Auxiliary outputs
Isolation voltage
Input/output
Input/chassis
3000VAC
1500VAC
Total regulation
FL to NL
Main output
Auxiliary outputs
±2.0%
±5.0%
Switching frequency
NFS
NFN
Variable
Fixed, 45kHz ±5kHz
Transient response
+5V (1.5A to 3A)
±120mV max. dev.
500µs recovery
Approvals and
standards
(See Note 13)
VDE0805, EN60950
IEC950, IEC1010, UL1950
CSA C22.2 No. 950
Temperature coefficient All outputs
Overvoltage protection +5V output
Output power limit
±0.02% /°C
125% ±15% Vout
Weight
280g (9.88oz)
Primary power limited
90W input
power limit
MTBF (See Note 9)
MIL-HDBK-217E
170,000 hours
Short circuit protection Single outputs
Multiple outputs
Continuous
Short term
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
(See Notes 8, 10)
Operating
Non-operating
0°C to +70°C
–40°C to +85°C
INPUT SPECIFICATIONS
50°C ambient temp.,
Convection cooled
Forced air cooling
40W
Input voltage range
Universal input
85 to 264VAC
120 to 370VDC
50W @ 20CFM
Input frequency range
47 to 440Hz
50°C to 70°C ambient Derate linearly
to 50% load
Max. input surge
current
132VAC, cold start
264VAC, cold start
12A max.
24A max.
Peak (60 seconds)
60W
Relative humidity
Altitude
Non-condensing
5% to 80% RH
Safety ground
leakage current
NFS: 110VAC, 60Hz
230VAC, 50Hz
NFN: 132VAC, 60Hz
240VAC, 50Hz
0.13mA max.
0.32mA max.
155µA max.
261µA max.
Operating
Non-operating
10,000 feet max.
40,000 feet max.
Vibration (See Note 11) 5Hz to 500Hz,
2.4G rms peak
EMC CHARACTERISTICS
Conducted emissions
Conducted emissions
Radiated emissions
ESD air
EN55022 (NFS), FCC part 15 Level A
EN55022 (NFN), FCC part 15 Level B
EN55022 (NFS and NFN)
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
Level A
Perf. criteria 1
Perf. criteria 1
Perf. criteria 1
Perf. criteria 1
Perf. criteria 2
Perf. criteria 2
ESD contact
Surge
Fast transients
Radiated immunity
Conducted immunity
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