NFS50-7608
Triple output
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6.3 x 3.94 x 1.5 inch package (1U applications)
Overvoltage and short circuit protection
50W with free air convection cooling
Regulation to no load
Isolated output option
EN55022, EN55011 conducted emissions level A
UL, VDE and CSA safety approvals
NFS50 Medical IEC601 approved
[ 2 YEAR WARRANTY ]
The NFS50-7608 is a 50W universal input AC/DC power supply on a 6.3 x 3.94 inch
card with a maximum component height of 1.5 inches for use in 1U applications. The
NFS50-7608 series can regulate on the auxiliary outputs down to no load making it
suitable for applications that require a heavy logic load on the main 5V output and low
nominal loads with high peak capability for drives, relays or switches on the auxiliary
outputs. The NFS50-7608 provides 50W of output power with free air convection
cooling which can be boosted to 60W with 20CFM of air. Standard features include
overvoltage and short circuit protection. The series, with full international safety approval
and the CE mark, meets conducted emissions EN55022 level A. The NFS50-7608
series is designed for use in low power data networking, computer, telecom and
industrial applications such as POS terminals, servers, PABX's, industrial PC's and
process automation.
SPECIFICATION
OUTPUT SPECIFICATIONS
Voltage adjustability
Line regulation
Total regulation
All specifications are typical at nominal input, full load at 25°C unless otherwise stated
EMC CHARACTERISTICS
±3%
±0.3%
±2.5%
±5.0%
0%
Efficiency
Isolation voltage
Switching frequency
Approvals and
standards
Weight
MTBF (See Note 7)
Input/output
Input/chassis
Variable
ESD contact
Surge
Fast transients
Radiated immunity
Conducted immunity
EN61000-4-2,
EN61000-4-5,
EN61000-4-4,
EN61000-4-3,
EN61000-4-6,
level
level
level
level
level
4
3
3
3
3
Perf.
Perf.
Perf.
Perf.
Perf.
criteria
criteria
criteria
criteria
criteria
1
1
2
2
2
+5V output
+12V tracks the 5V output
LL to HL at max. load
Main output (output 1)
All other outputs
(See Notes 5, 6)
At turn-on
5V (2.5A to 5A)
GENERAL SPECIFICATIONS
Hold-up time
110VAC, 50W output power
230VAC, 50W output power
16ms
100ms
70%, typ.
3000VAC
1500VAC
25kHz to 250kHz
VDE0805, EN60950, IEC950
IEC1010, CSA C22.2 No. 950
400g (14oz)
MIL-HDBK-217E, 25°C 160,000 hours
Overshoot/undershoot
Transient response
500mV max. dev.
500µs recovery to 0.5%
12V (1A to 2A)
300mV max. dev.
500µs recovery to 0.5%
±0.03%/°C, max.
6.25V ±0.65V
90W Pin max.
60W Pout min.
Yes, with auto-restart
Temperature coefficient All outputs
Overvoltage protection
Output power limit
Short circuit protection
INPUT SPECIFICATIONS
Input voltage range
Input frequency range
Input surge current
Safety ground
leakage current
110VAC, cold start
230VAC, cold start
132VAC, 60Hz
264VAC, 50Hz
Universal input
+5V output
Primary power
limited
ENVIRONMENTAL SPECIFICATIONS
85 to 264VAC
120 to 370VDC
47 to 440Hz
10A, max.
20A max.
0.2mA, max.
0.4mA, max.
Relative humidity
Level A
Level A
Perf. criteria 1
Altitude
Vibration (See Note 9)
Thermal performance
Operating range
0°C to +70°C
(See derating curve)
Non-operating
–40°C to +85°C
0°C to 50°C ambient temp.,
50W
Convection cooled
0°C to 50°C ambient,
60W
Forced air @ 20 CFM
50°C to 70°C ambient Derate linearly
to 50% load
Peak (30 seconds)
60W
Non-condensing
Operating
Non-operating
5Hz to 500Hz
5% to 95% RH
10,000 feet max.
30,000 feet max.
2.4G rms (approx)
EMC CHARACTERISTICS
Conducted emissions
Radiated emissions
ESD air
EN55022, FCC part 15
EN55022, FCC part 15
EN61000-4-2, level 3
PAGE 1
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