Rev.06.9.09_118

NFS40 Medical

 of 4

Embedded Power for

Business-Critical Continuity

313

process

yellow

3405

1797

1375

116

2607

652

242

2985

375

240

Notes

1 Natural convection cooling, 40 W maximum.

2 Forced air, 20 CFM at 1 atmosphere, 50 W maximum.

3 Peak output current lasting less than 30 seconds with duty cycle less than 10%.

During peak loading, outputs may go outside of total regulation limits. Peak

total power must not exceed 60 W.

4 50 MHz bandwidth, peak-to-peak, measured differentially.

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

initial tolerance, load currents within stated limits, and output voltages

regulation.

6 A minimum load of 0.5 A is required on the +5 V output to obtain full current

from the negative output.

7 Single output models have floating outputs which may be referenced as either

positive or negative.

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

optimum reliability no part of the heatsink should exceed 120 °C and no

semiconductor case temperature should exceed 130 °C.

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

making thermal measurements.

10 Although the minimum output current of the NFS40-79XXJ is 0 A, a 4 W

minimum load is required to achieve design MTBF.

11 Three orthogonal axes, sweep at 1 octave/min, 5 minute dwell at four major

resonances.

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

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

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

14 NOTICE: Some models do not support all options. Please contact your local

Emerson Network Power representative or use the on-line model number

search tool at http://www.PowerConversion.com to find a suitable alternative.

AC mating connector

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

DC mating connector

Molex 09-91-0600 or equivalent with Molex 08-50-0164 or equivalent crimp terminal.

Ordering Information

Output

Voltage

Output Currents

PK-PK

Total

3 A

5 A

7 A

50 mV

± 2.0%

NFS40-7908J

2 A

2 A

3 A

120 mV

± 5.0%

0.35 A

0 A

---

120 mV

± 5.0%

3 A

5 A

7 A

50 mV

± 2.0%

NFS40-7910J

2 A

2 A

2.5 A

150 mV

± 10%/-3.0%

0.35 A

0.5 A

---

150 mV

± 5.0%

3.3 A

4 A

5 A

120 mV

± 2.0%

NFS40-7912J

2.6 A

3.3 A

4 A

150 mV

± 2.0%

NFS40-7915J

1.6 A

2 A

2.5 A

240 mV

± 2.0%

NFS40-7924J

+5.1 V

4 A

7 A

5 A

50 mV

± 2.0%

NFS40-7928J

+12 V

0.35 A

1 A

0.5 A

120 mV

± 5.0%

–12 V

0.35 A

1 A

0.5 A

120 mV

± 5.0%

Pin Connections

J1

-7908J, -7928J

-7910J

SINGLES

Pin 1

AC Line

AC Line

AC Line

Pin 2

AC Neutral

AC Neutral

AC Neutral

J2

Pin 1

+12 V

+15 V

+Vout

Pin 2

+5.1 V

+5.1 V

+Vout

Pin 3

+5.1 V

+5.1 V

+Vout

Pin 4

Return

Return

Return

Pin 5

Return

Return

Return

Pin 6

-12 V

-15 V

Return

P1

Pin 1

Safety Earth Ground

DERATING CURVE

Output Power (Watts)

0C

10C

20C

30C

40C

50C

60C

70C

20W

40W

50W

20 CFM FORCED AIR COOLING

25W

NATURAL

CONVECTION

COOLING

Ordering Information