Selection Guide for P3 and P16 heatsinks

Standard P3 and P16 heatsinks
P3 ...........................................................................................................................................1
Fan SKF 3-230-01 ..............................................................................................................2
P16 .........................................................................................................................................3
Fan SKF 16 B-230-01 .........................................................................................................3
SEMISEL Simulation tool ......................................................................................................4
P3
Intended for isolated power modules: SEMIPACK (1 to 4), SEMITRANS 2 range (also some SEMIPONT)
Integrated rails allow easy mounting of the modules (80mm distance between rails)
Best fitted fan: SKF 3-230-01
Available in various lengths (standard 120mm
P3/120; 180mm
P3/180; 300mm
P3/300)
SEMIPACK1 -> width=20mm;
SEMIPACK2 -> width=34mm;
SEMIPACK3 -> width=50mm;
SEMIPACK4 -> width=50mm;
SEMITRANS2 -> width=34mm;
P3/120 (Weight=2,1kg)
Examples:
1 SEMIPACK1 (100W)
3 SEMIPACK1 (150W)
Rth(h-a)=0,55K/W (natural); Rth(h-a)=0,167K/W (with fan)
Rth(h-a)=0,43K/W (natural); Rth(h-a)=0,147K/W (with fan);
P3/180 (Weight=3,1kg)
Examples:
2 SEMIPACK1 (150W)
Rth(h-a)=0,39K/W (natural); Rth(h-a)=0,132K/W (with fan)
3 SEMIPACK1 (180W)
Rth(h-a)=0,36K/W (natural); Rth(h-a)=0,12K/W (with fan)
6 SEMIPACK1 (200W)
Rth(h-a)=0,33K/W (natural); Rth(h-a)=0,108K/W (with fan)
1 SEMIPACK2/SEMITRANS2
Rth(h-a)=0,144K/W (with fan)
3 SEMIPACK2/SEMITRANS2
Rth(h-a)=0,118K/W (with fan)
P3/300 (Weight=5,3kg)
Examples:
3 SEMIPACK2/SEMITRANS2
Rth(h-a)=0,0847K/W (with fan)
For more details (also other module combinations with or w/o fan) please see the diagrams Fig.3a, Fig.3b, Fig.6
and Fig.7 in the P3 datasheet.
1
Fan SKF 3-230-01
SEMIKRON part number 30031061
Can be used in both directions (extraction or blowing)
f = 50/60Hz
Voltage = 230V
3
Max. volume = 159/190 m /h
P = 15/14W
Max. Tamb = 70°C
Weight = 0,55kg
Noise = 37/41dB
Size: height=119mm; width=119mm; depth=38;
2
P16
Intended for all isolated power modules: SEMIPACK, SEMITRANS, SEMIPONT, SKiM, SEMiX, SKiiP
Excellent efficiency/volume ratio
Best suited fan: SKF 16-B-230-01
Available in various lengths (standard 200mm
P16/200; 300mm
P16/300)
P16/200 (Weight=4,7kg)
Examples:
3 SEMIPACK1
Rth(h-a)=0,046K/W (with fan)
6 SEMIPACK1
Rth(h-a)=0,039K/W (with fan)
3 SEMIPACK2/SEMITRANS2
Rth(h-a)=0,038K/W (with fan)
2 SEMIPACK3/SEMIPACK4
Rth(h-a)=0,04K/W (with fan)
3 SEMIPACK3/SEMIPACK4
Rth(h-a)=0,033K/W (with fan)
P16/300 (Weight=7kg)
Examples:
6 SEMIPACK2/SEMITRANS2
Rth(h-a)=0,036K/W (with fan)
6 SEMIPACK3/SEMIPACK4
Rth(h-a)=0,024K/W (with fan)
For more details (also other module combinations with or w/o fan) please see the diagrams Fig.6a, Fig.6b
andFig.6c in the P16 datasheet.
Fan SKF 16 B-230-01
SEMIKRON part number 30119362
Low noise level
Long-life, maintenance free ball bearings
Blowing fan
f = 50/60Hz
Voltage = 230V
3
Max. volume = 610/565 m /h
P = 170/197W
Max. Tamb = 40°C
Weight = 3,6kg
Noise = 58/57dB
Size: 238 x 216 x 182,5mm
3
SEMISEL Simulation tool
Although the examples above might help you to find out the suitable length of the P3 and P16 heatsink for your
specific application, you can simulate power module(s) mounted on the heatsink at a power (current and voltage)
and temperature specified by you by using the SEMISEL simulation tool.
Link to SEMISEL:
http://shop.semikron.com/Service-and-Support/Knowledge-Base/SEMISEL/
Choose „Step by Step design“, select “I accept the license term” and “Go anonymus”.
Example
Topology: AC/DC
B6U
In “Input parameters” change the necessary fields to adapt the values to your application requirements. For this
example, just change the field “output current” to 80A.
In the next step, select a package (e.g. SEMIPACK) and device (e.g. SKKD81).
For the cooling, select “predefined type”; for this example, if you simulate (button “Calculate”) the heatsink P3/180
with natural air cooling, you will see that this option is valid.
Usually it is possible to take a shorter version of a heatsink and add a fan to have a similar Rth(h-a) value with
fewer space.
4