NPH25S SERIES

Isolated 25W Single Output DC-DC Converters

C&D Technologies (NCL) Limited reserve the right to alter or improve the

specification, internal design or manufacturing process at any time, without

notice. Please check with your supplier or visit our web site to ensure that

you have the current and complete specification for your product before use.

For information and instructions on use, please consult the NPH SERIES

APPLICATION NOTES.

© C&D Technologies (NCL) Limited 2002

NDC NPH25S.5

No part of this publication may be copied, transmitted or stored in a

retrieval system or reproduced in any way including, but not limited to,

photography, photocopy, magnetic or other recording means, without prior

written permission from C&D Technologies (NCL) Limited.

Instructions for use are available from www.cdpoweronline.com

ENVIRONMENTAL

Parameter

Conditions

MIN

TYP

MAX

Units

Case Temperature

Full load

–40

110

°C

Storage

Absolute MAX internal temperature

–40

125

°C

Relative Humidity

Non condensing 85°C

85

%

Thermal Protection

Operates at case temperature

110

°C

Weight: 45g

All dimensions in Inches (mm) ± 0.01 (0.25)

All pins on a 0.10 (2.54) pitch and within ± 0.01 (0.25) of true position

* Optional

THERMAL CHARACTERISTICS

THERMAL PERFORMANCE

UL 1950 recognition -

MAX permissible loads for a given ambient temperature for any NPH25S model

Temperature (°C)

Power (W)

Temperature (°C)

Power (W)

40

25.0

80

13.9

50

22.2

85

12.5

60

19.4

90

11.1

70

16.6

MAX power rating with case temperature maintained by external means

(eg forced air cooling)

Case Temperature

Part Number

100°C

105°C

110°C

Units

NPH25S2403

24

20

15

NPH25S2405

25

22

18

W

NPH25S2412

30

24

21

NPH25S2415

30

27

22

NPH25S4803

25

20

16

NPH25S4805

25

24

20

W

NPH25S4812

30

29

24

NPH25S4815

30

30

26

MECHANICAL DIMENSIONS

35

30

25

20

15

10

5

0

-40

-20

0

20

40

60

80

100 120

Ambient Temperature (°C)

2415

2412

2405

2403

35

30

25

20

15

10

5

0

-40

-20

0

20

40

60

80

100 120

Ambient Temperature (°C)

4815

4812

4805

4803

1.97 (50.00)

0.80

(20.32)

1.38

(35.00)

0.80

(20.32)

0.29

(7.34)

0.39 (10.00)

Ø

0.04 (1.04)

0.04 (0.90)

0.18 (4.50)

0.15 (3.70)

0.20

(5.08)

SS

ADJ

0V

0.59

(14.96)

0.58

(14.84)

0.20 (5.08)

0.20 (5.08)

BOTTOM VIEW

C&D Technologies (NCL) Ltd

Tanners Drive, Blakelands North

Milton Keynes MK14 5BU, England

Tel: +44 (0)1908 615232

Fax: +44 (0)1908 617545

email: info@cdtechno-ncl.com

www.cdpoweronline.com

C&D Technologies Inc.

3400 E Britannia Drive, Tucson,

Arizona 85706, USA

Tel: +1 (800) 547-2537

Fax: +1 (520) 741-4598

email: sales@cdtechno.com