INPUT

OUTPUT

MAX. OUTPUT

INPUT

TYPICAL

VOLTAGE

CURRENT

EFFICIENCY

METRIC INSERTS

IMPERIAL INSERTS

18-36VDC

5VDC

6.2VDC

8A

2.15A

80%

NFC40-24S05-M

NFC40-24S05

18-36VDC

12VDC

15VDC

3.5A

2.1A

82%

NFC40-24S12-M

NFC40-24S12

18-36VDC

15VDC

18VDC

2.8A

2.1A

82%

NFC40-24S15-M

NFC40-24S15

18-36VDC

5/±12VDC

6.2VDC/None

7.5/±0.75A

2.15A

80%

NFC40-24T05-12-M

18-36VDC

5/±15VDC

6.2VDC/None

7.5/±0.75A

2.15A

80%

NFC40-24T05-15-M

36-72VDC

5VDC

6.2VDC

8A

1.1A

81%

NFC40-48S05-M

NFC40-48S05

36-72VDC

12VDC

15VDC

3.5A

1.05A

83%

NFC40-48S12-M

NFC40-48S12

36-72VDC

15VDC

18VDC

2.8A

1.05A

83%

NFC40-48S15-M

NFC40-48S15

36-72VDC

5/±12VDC

6.2VDC/None

7.5/±0.75A

1.1A

81%

NFC40-48T05-12-M

36-72VDC

5/±15VDC

6.2VDC/None

7.5/±0.75A

1.1A

81%

NFC40-48T05-15-M

PIN NUMBER

SINGLE OUTPUT

TRIPLE OUTPUT

1

+ Input

+ Input

2

– Input

– Input

3

Control

Control

4

No Connection

+ Vout 2

5

No Connection

Common 2, 3

6

No Connection

– Vout 3

7

+ Output

+ Vout 1

8

Common

Common 1

9

Trim

Trim

Mechanical notes

A All pins are actual to within 0.010 inch (0.25mm) diameter.

B Tolerances:

Imperial

0.XX ± 0.02 inch

0.XXX ± 0.005 inch

Metric

0.X ± 0.5mm

0.XX ± 0.13mm

Unless otherwise specified.

C Metric dimensions in brackets, e.g. 1.250” (31.75mm).

D Copper tracks must not be routed under the four converter stand-offs.

1.800

(45.72)

0.15 (3.8) Min.

0.05 (1.3)

1.900

± 0.010

(48.26

± 0.25)

Square

0.4 (1.02) Dia. Typ.

0.020

± 0.010 (0.51 ± 0.25)

0.50 (12.7)

0.100

(2.54)

0.300 7.620

0.200 (5.080)

0.500 (12.700)

0.600

(15.24)

0.800

(20.32)

0.22

± 0.03 (5.6±0.8) Dia. Stand-off (4 Places)

Metric: M3 Tap Thru. (4 Places) Designated with the

suffix '-M' at the end of the model number

Imperial: #4-40 VNC-2B Tap. Thru. (4 places)

Designated without the suffix '-M' at the end of the

model number

0.200 (5.08)

0.600

(15.24)

1.100

(27.94)

1.250

(31.75)

0.20 (5.10)

2.20 (55.90)

Square

1

2

3

4

5

6

7

8

9

ALL DIMENSIONS IN INCHES (mm)

Notes

1

Total error band is defined at the static output regulation at 25°C, includ-

ing initial setting accuracy, line voltage within stated limits and load cur-

rent within stated limits.

2

Nominal input voltages are 24VDC and 48VDC.

3

Overvoltage protection threshold. Any main output overvoltage clamps

the output to a very low output voltage. A prolonged overvoltage

condition will cause the converter to fail.

4

Maximum value at full load, nominal input voltage.

5

For top-mounted heatsink option with Metric screws, add ‘-MX’ or ‘-MY’

to these model numbers. For side-mounted heatsink option, add ‘-ME’ or

‘-MS’ to the model number e.g. NFC40-48S05-MX.

For top-mounted heatsink option with Imperial screws, add ‘-1X’ or ‘-1Y’

to these model numbers. For side-mounted heatsink option, add ‘-1E’ or

‘-1S’ to the model number e.g. NFC40-48S05-1X.

6

For triple output units, common pins (5 and 8) should be connected

externally.

7

Output V1 must return to common 1 and outputs V2 and V3 to common 2

and 3 respectively in order to meet noise and regulation specifications.

8

The external trim function enables the tailoring of the output voltage to

the applications exact requirements. Adjustments within ±10% are

possible. On the triple output models the auxiliary output voltages (output

2 and 3) will vary proportionally to the main output.

9

An external filter capacitor is required for normal operation. The

capacitor should be capable of handling 1A/2A ripple current for 48V/24V

models. Artesyn suggests: Nippon Chemi-Con SXE series, 220µF/100V

for the NFC40-48xxx-M and the Nippon Chemi-Con LXF Series,

1500µF/50V for the NFC40-24xxx-M.

10 Extended operating temperature range. To specify an NFC40 that

operates down to –40°C, add the suffix ‘4’ or ‘-4’ to the model number

e.g. NFC40-48S05-M4 or NFC40-48S05-4 for Metric and Imperial screw

measurements respectively.

11 Case temperature must not exceed +105°C. Curve may be extended or

restricted depending on available cooling.

Auxiliary Load Regulation

NFC40-XXT05-12-M

0

200

400

600

750

11

12

13

14

15

OUTPUT CURRENT

4.0

2.0

.50

6.0

7.5

Auxiliary Load Regulation

NFC40-XXT05-15-M

0

200

400

600

750

13

14

15

16

17

OUTPUT CURRENT

4.0

2.0

.50

6.0

7.5

18

40 Watt

Wide input DC/DC converters

DC/DC CONVERTERS

|

40W DC/DC

PAGE 143

http://www.artesyn.com

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