Thermal curves – Delta Electronics Series H48SA User Manual
Page 11
DS_H48SA12025_05052008
THERMAL CURVES
H48SA12025(Standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin = 48V (Either Orientation)
0
5
10
15
20
25
25
30
35
40
45
50
55
60
65
70
75
80
85
Natural
Convection
100LFM
300LFM
200LFM
Ambient Temperature
(℃)
Output Current (A)
600LFM
500LFM
400LFM
Figure 24:
Temperature measurement location for openframe
version - The allowed maximum hot spot temperature is
defined at 122℃.
Figure 26:
Output current vs. ambient temperature and air
velocity @ V
in
=48V, Vout=12V(Openframe Version, Either
Orientation).
H48SA12025(standard) Output Current vs. Ambient Temperature and Air Velocity
@Vin = 48V (Either Orientation,With Heatspreader)
0
5
10
15
20
25
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature
(℃)
Output Current (A)
Natural
Convection
100LFM
300LFM
200LFM
400LFM
600LFM
500LFM
Figure 25:
Temperature measurement location for heatspreader
version - The allowed maximum hot spot temperature is defined
at 109℃.
Figure 27:
Output current vs. ambient temperature and air
velocity @ V
in
=48V, Vout=12V(Heatspreader version, Either
Orientation).
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