Datasheet

CD5.121
CD-Series
DC/DC Converter 12V, 8A
Mar. 2016 / Rev. 1.5 DS-CD5.121-EN
All parameters are specified at 12V, 8A, 24Vdc input voltage, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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21.12. MOUNTING ORIENTATIONS
Mounting orientations other than input terminals on the bottom and output on the top require a reduction in
continuous output power or a limitation in the max. allowed ambient temperature. The amount of reduction
influences the lifetime expectancy of the DC/DC converter. Therefore, two different derating curves for continuous
operation can be found below:
Curve A1 Recommended output current.
Curve A2 Max allowed output current (results in approximately half the lifetime expectancy of A1).
Fig. 21-6
Mounting
Orientation A
(Standard
orientation)
DC/DC
Converter
OUTPUT
INPUT
Output Current
0
10 20 30 40
60°
C
2
6
8
10A
50
Ambient Temperature
4
A
1
Fig. 21-7
Mounting
Orientation B
(Upside down)
DC/DC
Converter
OUTPUT
INPUT
Output Current
0
10 20 30 40
60°
C
2
6
8
10A
50
Ambient Temperature
4
A
2
A
1
Fig. 21-8
Mounting
Orientation C
(Table-top
mounting)
Output Current
0
10 20 30 40
60°
C
2
6
8
10A
50
Ambient Temperature
4
A
1
A
2
Fig. 21-9
Mounting
Orientation D
(Horizontal cw)
DC/DC
Converter
OUTPUT
INPUT
Output Current
0
10 20 30 40
60°
C
2
6
8
10A
50
Ambient Temperature
4
A
1
A
2
Fig. 21-10
Mounting
Orientation E
(Horizontal ccw)
DC/DC
Converter
OUTPUT
INPUT
Output Current
0
10 20 30 40
60°
C
2
6
8
10A
50
Ambient Temperature
4
A
1
A
2
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