Q48SK12025NRFA Datasheet, PDF (10/13 Pages) Delta Electronics, Inc. – Delphi Series Q48SK, Quarter Brick Family DC/DC Power Modules: 36~75V in, 12V/25A out, 300W

THERMAL CURVES
(WITHOUT HEAT SPREADER)
THERMAL CURVES
(WITH HEAT SPREADER)
Figure 18: Temperature measurement location
* The allowed maximum hot spot temperature is defined at 118
Q48SK12025(Standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current(A)
@Vin = 48V (Transverse Orientation)
25
Natural
20
Convection
100LFM
15
200LFM
300LFM
10
400LFM
500LFM
5
600LFM
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature ( )
Figure 19: Output current vs. ambient temperature and air
velocity @Vin=48V(Transverse Orientation, without heat
spreader)
Figure 20: Temperature measurement location
* The allowed maximum hot spot temperature is defined at 112
Q48SK12025(Standard) Output Current vs. Ambient Temperature and Air Velocity
Output Current(A)
@Vin = 48V (Transverse Orientation,With Heatspreader)
25
Natural
Convection
20
100LFM
200LFM
15
300LFM
10
400LFM
500LFM
5
600LFM
0
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature ( )
Figure 21: Output current vs. ambient temperature and air
velocity @Vin=48V(Transverse Orientation, with heat spreader)
DS_Q48SK12025_07012010
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