Q48SK12025NRFH Delta Electronics, Q48SK12025NRFH Datasheet - Page 10

• Manufacturer Part Number: Q48SK12025NRFH
• Description: CONV DC/DC 25A 48V/IN 12V/O NEG
• Manufacturer: Delta Electronics
• Series: DELPHIr
• Type: Isolated with Remote On/Off and UVLOr

Specifications of Q48SK12025NRFH

• Output: 12V
• Number Of Outputs: 1
• Power (watts): 300W
• Mounting Type: Through Hole
• Voltage - Input: 48V
• Package / Case: 6-DIP Module, 1/4 Brick
• 1st Output: 12 VDC @ 25A
• Size / Dimension: 2.28" L x 1.45" W x 0.50" H (57.9mm x 36.8mm x 12.7mm)
• Power (watts) - Rated: 300W
• Operating Temperature: -40°C ~ 112°C
• Efficiency: 95.2%
• Approvals: cUL, UL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Other names: 941-1012

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