Rev.06.9.09_118
NFS40 Medical
3 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 dened as the static output regulation at 25 °C, including
initial tolerance, load currents within stated limits, and output voltages
adjusted to their factory settings. Also, 0.25 ² I
A
/ I
B
² 5.0 to maintain stated
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 oating outputs which may be referenced as either
positive or negative.
8 Derating curve is application specic 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’ sufx 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 nd 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 Ripple
(4)
PK-PK
Total
Regulation
(5)
Model Numbers
(13, 14)
Conv Max
(1)
20 CFM Max.
(2)
Peak
(3)
+5.1 V (V
A
) 3 A 5 A 7 A 50 mV ± 2.0% NFS40-7908J
+12 V (V
B
) 2 A 2 A 3 A 120 mV ± 5.0%
–12 V
(6)
0.35 A 0 A --- 120 mV ± 5.0%
+5.1 V (V
A
) 3 A 5 A 7 A 50 mV ± 2.0% NFS40-7910J
+15 V (V
B
) 2 A 2 A 2.5 A 150 mV ± 10%/-3.0%
-15 V
(6)
0.35 A 0.5 A --- 150 mV ± 5.0%
12 V
(7)
3.3 A 4 A 5 A 120 mV ± 2.0% NFS40-7912J
15 V
(7)
2.6 A 3.3 A 4 A 150 mV ± 2.0% NFS40-7915J
24 V
(7)
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
