6.6 Heat sink(Optional parts)
¿
DHS50, DHS100
¡
The power module works with conduction cooling and needs heat
dissipation using heat sinks. Optional heat sinks are available for
DHS Series. Refer to Table 6.1 and Table 6.2 for details on the
thermal resistance of heat sinks.
Table 6.1 Types of Heat Sinks Available
No.
Model
Size[mm]
Thermal resistance[
C
/W]
Style
H
W
D
Convection
(0.1m/s)
Forced Air
1
F-QB-F1 12.7 58.4 37.6
14.0
Refer Fig.6.5
Horizontal
2
F-QB-F2 12.7 58.7 37.3
Vertical
3
F-QB-F3 25.4 58.4 37.6
7.5
Horizontal
4
F-QB-F4 25.4 58.7 37.3
Vertical
5
F-QB-F5 38.1 58.4 37.6
5.0
Horizontal
6
F-QB-F6 38.1 58.7 37.3
Vertical
¡
It is necessary to note the thermal fatigue life by power cycle.
Please reduce the temperature fl uctuation range as much as pos-
sible when the up and down of the temperature are frequently
generated.
Contact us for more information on cooling methods.
¿
DHS50, DHS100
-40
-20
0
20
40
60
80
100 110
0
50
15
100
2
1
(85)
1
DHS100B24,28
2
Others
Aluminum base plate temperature Tc [
C
]
Load
factor
[%]
¿
DHS200
-40
-20
0
20
40
60
80
100 110
0
50
15
100
2
1
(85)
(75)
1
DHS200A05
2
Others
Aluminum base plate temperature Tc [
C
]
Load
factor
[%]
¿
DHS250
-40
-20
0
20
40
60
80
100 110
0
50
15
100
2
1
(85)
(75)
1
DHS250B12,48
2
Others
Aluminum base plate temperature Tc [
C
]
Load
factor
[%]
0
2
4
6
8
10
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Wind velocity(m/s)
Thermal
resistance(
/w)
F-QB -F1/F2
F-
QB -F3/F4
F-QB -F5/F6
C
DC-DC Converters Bus Converter.Power Module Type
Instruction Manual
DHS-22
DHS
Fig.6.4 Heat Sink Types
W
D
D
H
H
W
Vertical
Horizontal
Fig.6.5 Thermal Resistance of Heat Sink(Forced Air)
Fig.6.3 Derating Curve
Tc
Measuring point
DHS50, DHS100
DHS200, DHS250
me̲dhs1.indd DHS-22
me dhs1 indd DHS-22
2015/06/19 11:08:05
2015/06/19 11:08:05
