NPH25S SERIES
Isolated 25W Single Output DC-DC Converters
ENVIRONMENTAL
Parameter
Conditions
MIN
TYP
MAX
Units
Case Temperature
Storage
Relative Humidity
Thermal Protection
Full load
Absolute MAX internal temperature
Non condensing 85°C
Operates at case temperature
–40
–40
110
110
125
85
°C
°C
%
°C
THERMAL CHARACTERISTICS
UL 1950 recognition
-
MAX permissible loads for a given ambient temperature for any NPH25S model
THERMAL PERFORMANCE
35
30
2415
2412
2405
2403
Output Power (W)
Temperature (°C)
Power (W)
Temperature (°C)
Power (W)
25
20
15
10
5
0
-40
35
30
-20
0
20
40
60
80
40
50
60
70
25.0
22.2
19.4
16.6
80
85
90
13.9
12.5
11.1
MAX power rating
with case temperature maintained by external means
(eg forced air cooling)
Case Temperature
Ambient Temperature (°C)
100 120
Part Number
NPH25S2403
NPH25S2405
NPH25S2412
NPH25S2415
NPH25S4803
NPH25S4805
NPH25S4812
NPH25S4815
100°C
24
25
30
30
25
25
30
30
105°C
20
22
24
27
20
24
29
30
110°C
15
18
21
22
16
20
24
26
Units
Output Power (W)
4815
4812
4805
4803
W
25
20
15
10
5
0
-40
-20
0
20
40
60
80
W
Ambient Temperature (°C)
100 120
MECHANICAL DIMENSIONS
1.97 (50.00)
BOTTOM VIEW
0.20 (5.08)
1.38
(35.00)
0.20 (5.08)
0.59
(14.96)
SS
+V
IN
-V
IN
+V
OUT
0.29
(7.34)
0.80
(20.32)
ADJ
0V
0.39 (10.00)
0.18 (4.50)
0.15 (3.70)
0.20
(5.08)
0.58
(14.84)
0.80
(20.32)
Ø
0.04 (1.04)
0.04 (0.90)
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
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
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
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
CANDD [ C&D TECHNOLOGIES ]
