78253 SERIES

MAX253 Compatible Converter Transformers

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: http://www.dc-dc.com

C&D Technologies (NCL), Inc.

8917 Glenwood Avenue, Raleigh

NC 27612, USA

Tel: +1 (919) 571-9405

Fax: +1 (919) 571-9262

email: info@us.cdtechno-ncl.com

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.

© C&D Technologies (NCL) Limited 2000

NMP 78253.2

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.dc-dc.com

MECHANICAL DIMENSIONS

TYPICAL CHARACTERISTICS (VOLTAGE CURVES)

All dimensions in mm XX.XX ±0.25mm. All pins on a 2.54mm pitch and within ±0.25mm of true position.

6 Pin DIP

6 Pin SM

78253

35

9.52 max

8.89 max

1

2

3

Primary

Secondary

6

5

4

6.35

3.44±0.50

0.30

0.20

0.63

0.53

10.16

2.54

78250M

XYYWW

9.52 max

Top View

Top View

8.89 max

6.35

0.90

12.70

0.30

0.20

0.63

0.53

2.54

1

2

3

Primary

Secondary

6

5

4

XYYWW

0

20

40

60

80 100 120

Output Current (mA)

FS=High

FS=Low

78253/35(M)

10

8

6

4

2

0

0

100

200

300

400

Output Current (mA)

FS=Low/High

78253/55(M)

10

8

6

4

2

0

0

20

40

60

80

100

Output Current (mA)

FS=High

FS=Low

78253/35(M)V

10

8

6

4

2

0

0

100

200

300

400

Output Current (mA)

FS=High

FS=Low

78253/55(M)V

10

8

6

4

2

0

0

20

40

60

80 100 120

Output Current (mA)

FS=High

FS=Low

78253/35(M)

100

80

60

40

20

0

0

100

200

300

400

Output Current (mA)

FS=Low/High

78253/55(M)

100

80

60

40

20

0

0

20

40

60

80

100

Output Current (mA)

FS=High

FS=Low

78253/35(M)V

100

80

60

40

20

0

0

100

200

300

400

Output Current (mA)

FS=Low

FS=High

78253/55(M)V

100

80

60

40

20

0

-50 -25

0

25

50

75 100

Temperature (°C)

FS=Low

78253/35(M)

110

105

100

95

90

FS=High

-50

-25

0

25

50

75 100

Temperature (°C)

FS=Low

78253/55(M)

110

105

100

95

90

FS=High

-50

-25

0

25

50

75 100

Temperature (°C)

FS=Low

78253/35(M)V

110

105

100

95

90

FS=High

-50 -25

0

25

50

75 100

Temperature (°C)

FS=Low

78253/55(M)V

110

105

100

95

90

FS=High

EFFICIENCY CURVES

VOLTAGE DEVIATION

VOLTAGE CURVES