SEMICONDUCTOR

DCR4100W42

6/10

www.dynexsemi.com

0

10

20

30

40

50

60

70

80

90

100

110

120

130

0

1000 2000 3000 4000 5000 6000 7000 8000

d.c.

180

120

90

60

30

0

10

20

30

40

50

60

70

80

90

100

110

120

130

0

1000 2000 3000 4000 5000 6000 7000 8000

d.c.

180

120

90

60

30

Fig.7 Maximum permissible case temperature,

double side cooled – rectangular wave

Fig.8 Maximum permissible heatsink temperature,

double side cooled – rectangular wave

0

2

4

6

8

10

12

14

16

0.001

0.01

0.1

1

10

100

Time ( s )

Double Side Cooling

Anode Side Cooling

Cathode Sided Cooling

1

2

3

4

Double side cooled

0.8816

1.2993

2.8048

1.3305

0.0106818

0.058404

0.3584979

1.1285

Anode side cooled

1.5197

3.2398

5.7622

0.6312

0.0170581

0.2424644

6.013

15.364

Cathode side cooled

1.4106

2.4667

6.7451

3.9054

0.0158344

0.1786951

3.6201

6.196

[1]

operates at conduction angles other than d.c.

Double side cooling

Anode Side Cooling

Cathode Sided Cooling

°

sine.

rect.

°

sine.

rect.

°

sine.

rect.

180

1.00

0.67

180

0.94

0.64

180

0.95

0.65

120

1.16

0.97

120

1.08

0.91

120

1.09

0.92

90

1.33

1.13

90

1.23

1.06

90

1.25

1.07

60

1.48

1.31

60

1.37

1.22

60

1.38

1.23

30

1.61

1.51

30

1.47

1.38

30

1.49

1.40

15

1.66

1.61

15

1.52

1.47

15

1.54

1.49

Fig.9 Maximum (limit) transient thermal impedance – junction to case (°C/kW)