de-rating information

to order

BS EN ISO 9001:2008

approved manufacturer

643 series

0.0

100.0

80.0

60.0

40.0

20.0

55

5

0

15

25

35

45

Ambient Temperature Ta (°C)

Derating Graph B

10

20

30

40

50

8

0.0

100.0

80.0

60.0

40.0

20.0

55

5

0

15

25

35

45

Ambient Temperature Ta (°C)

Derating Graph C

10

20

30

40

50

0.0

100.0

80.0

60.0

40.0

20.0

55

5

0

15

25

35

45

Ambient Temperature Ta (°C)

Derating Graph D

10

20

30

40

50

0.0

100.0

80.0

60.0

40.0

20.0

55

5

0

15

25

35

45

Ambient Temperature Ta (°C)

Derating Graph F

10

20

30

40

50

0.0

100.0

80.0

60.0

40.0

20.0

55

5

0

15

25

35

45

Ambient Temperature Ta (°C)

Derating Graph U

10

20

30

40

50

8.5

also available

Part numbers also available in the 643 series:

Part

Number

Colour

Voltage

Vopr

643-501-04-50

Red

20 mA dc

643-501-04-51

Red

20 mA dc

643-521-04-51

Yellow

20 mA dc

643-530-04-51

-

20 mA dc

643-532-04-51

Green

20 mA dc

643-535-04-15

Red/Green

20 mA dc

643-535-04-50

Red/Green

20 mA dc

643-930-04-51

Blue

20 mA dc

643-997-04-51

White

20 mA dc

The products listed here illustrate all of

the options available to order. These

products may have custom modifications

that alter their operation beyond the

generic information contained within this

datasheet. Please contact sales for

further information.

* = These products do not contain

integral resistors

© marl international limited technical documentation has been designed by marl international limited for the intention of

providing information, which must not be copied or released to a third party without prior written consent from marl

international limited. the information provided does not constitute part of any order or contract and should not be regarded as a

representation relating to either products or service. no responsibility can be assumed for inaccuracies or printing errors. marl

international limited reserve the right to alter without notice the specification or any conditions of supply for product or service.

marl international limited - dsn 643 - version 2012-12-06-113933

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