NFS50-7608J - ARTESYN EMBEDDED TECHNOLOGIES

The NFS50 series 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 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 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 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.

Embedded Power for

Business-Critical Continuity

NFS50_7608J

Triple output

Special Features

• 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

• Available RoHS compliant

• 2 year warranty

Total Power: 50 - 60W

Input Voltage: 85 - 264VAC

120 - 370VDC

# of Outputs: Triple

Safety

VDE0805/EN60950/

IEC950/IEC1010

File No. 10401-3336-1036

Licence No 1485 and 1650

UL1950 File No. E136005

CSA C22.2 No. 950

File No. LR41062C

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Embedded Power for

Business-Critical Continuity

All specifications are typical at nominal input, full load at 25°C unless otherwise stated

Specifications

OUTPUT SPECIFICATIONS

Voltage adjustability +5V output ±3%

+12V tracks the 5V output

Line regulation LL to HL at max. load ±0.3%

Total regulation Main output (output 1) ±2.5%

All other outputs ±5.0%

(See Notes 5, 6)

Overshoot/undershoot At turn-on 0%

Transient response 5V (2.5A to 5A) 500mV max. dev.

500μs recovery to 0.5%

12V (1A to 2A) 300mV max. dev.

500μs recovery to 0.5%

Temperature coefficient All outputs ±0.03%/°C, max.

Overvoltage protection +5V output 6.25V ±0.65V

Output power limit Primary power 90W Pin max.

limited 60W Pout min.

Short circuit protection Yes, with auto-restart

INPUT SPECIFICATIONS

Input voltage range Universal input 85 to 264VAC

120 to 370VDC

Input frequency range 47 to 440Hz

Input surge current 110VAC, cold start 10A, max.

230VAC, cold start 20A max.

Safety ground 132VAC, 60Hz 0.2mA, max.

leakage current 264VAC, 50Hz 0.4mA, max.

EMC CHARACTERISTICS

Conducted emissions EN55022, FCC part 15 Level A

Radiated emissions EN55022, FCC part 15 Level A

ESD air EN61000-4-2, level 3 Perf. criteria 1

EMC CHARACTERISTICS

ESD contact EN61000-4-2, level 4 Perf. criteria 1

Surge EN61000-4-5, level 3 Perf. criteria 1

Fast transients EN61000-4-4, level 3 Perf. criteria 2

Radiated immunity EN61000-4-3, level 3 Perf. criteria 2

Conducted immunity EN61000-4-6, level 3 Perf. criteria 2

GENERAL SPECIFICATIONS

Hold-up time 110VAC, 50W output power 16ms

230VAC, 50W output power 100ms

Efficiency 70%, typ.

Isolation voltage Input/output 3000VAC

Input/chassis 1500VAC

Switching frequency Variable 25kHz to 250kHz

Approvals and VDE0805, EN60950, IEC950

standards IEC1010, CSA C22.2 No. 950

Weight 400g (14oz)

MTBF (See Note 7) MIL-HDBK-217E, 25°C 160,000 hours

ENVIRONMENTAL SPECIFICATIONS

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

Relative humidity Non-condensing 5% to 95% RH

Altitude Operating 10,000 feet max.

Non-operating 30,000 feet max.

Vibration (See Note 9) 5Hz to 500Hz 2.4G rms (approx)

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Specifications Contd.

Notes

1 Convection cooled, maximum 50W output power.

2 Peak outputs lasting less than 30 seconds with duty factor less than 10%.

During peak loading output may go outside total regulation limits. Maximum

output during peak loading is 60 Watts.

3 Forced air, 20 CFM at 1 atmosphere.

4 Figure is peak-to-peak. Output noise measurements are across a 50MHz

bandwidth made using a 12” twisted pair, terminated with a 47μF capacitor.

5 Total regulation is defined as the static output regulation at 25°C, including

initial tolerance, line voltage within stated limits and output voltages adjusted

to their factory settings. Also, for stated I(2) regulation: I(1)/I(2)≤5.

6 A minimum load of 0.5 Amps is required on the +5.1V output to obtain full

current from the -12V output.

7 Derating curve is application specific for ambient temperatures > 50°C, for

optimum reliability no part of the heatsink should exceed 110oC and no

semiconductor case temperature should exceed 115oC.

8 Caution: Allow a minimum of 1 second after disconnecting the power when

making thermal measurements.

9 Three orthogonal axes, random vibration, ten minute test for each axis.

10 A 5 Watt minimum load is recommended to achieve design MTBF.

11 This product is only for inclusion by professional installers within other

equipment and must not be operated as a stand alone product.

12 The ‘J’ suffix indicates that these parts are Pb-free (RoHS 6/6) compliant. TSE

RoHS 5/6 (non Pb-free) compliant versions may be available on special

request, please contact your local sales representative for details.

OUTPUT OUTPUT CURRENTS RIPPLE (4) TOTAL MODEL

VOLTAGE MAX(1) PEAK (2) FAN (3) REGULATION(5,6) NUMBER (12)

+5.1V (I1) (6) 5.0A 7.0A 7.0A 50mV ±2.5% NFS50-7608J

+12.0V (I2) 2.0A 5.0A 2.5A 120mV ±5.0%

-12.0V 0.5A 1.0A 0.7A 120mV ±5.0%

AC mating connector

Molex 09-50-3031 or equivalent with Molex 08-50-0105 or equivalent crimp

terminal.

DC mating connector

Molex 22-01-1043 or equivalent with Molex

08-50-0031 or equivalent crimp terminal.

ALL DIMENSIONS ARE IN INCHES (mm)

Maximum component height is 1.5 (38.1)

3.15

(80.0)

0.40

(10.2)

4.80

(121.9)

3.94

(100.1)

0.75

(19.0)

6.30

(160.0)

J1 E1

OUTPUT

ADJUST

0.156 (3.96) Dia. 4 Places

MAX HEIGHT 38.1mm PIN1

PIN1

60W

50W

20 CFM FORCED AIR COOLING

25W

0°C 10°C 20°C 30°C 40°C 50°C 60°C 70°C

DERATING CURVE

Output Power (Watts)

5W MINIMUM LOAD REQUIRED TO ACHIEVE DESIGN MTBF

NATURAL

CONVECTION

COOLING

30W

PIN CONNECTIONS

J1 NFS50-7608J

Pin 1 AC Line

Pin 2 AC Neutral

J2, J3, J4

Pin 1 -12V

Pin 2 +12V

Pin 3 Return

Pin 4 +5.1V

Pin 1 Ground

Embedded Power for

Business-Critical Continuity

Rev.02.16.07

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accuracy and completeness in this literature, Emerson

Network Power assumes no responsibility, and disclaims

all liability for damages resulting from use of this

information or for any errors or omissions.