1.1

Characteristics (curves)

Figure 1. Conduction losses versus average forward

current (per diode)

0

20

40

60

80

100

120

140

0

10

20

30

40

50

60

70

80

90

100

110

= 0.05

= 0.1

= 0.2

= 0.5

= 1

T

=tp/T

tp

PF(AV)(W)

IF(AV)(A)

δ

δ

δ

δ

δ

δ

Figure 2. Average forward current versus ambient

temperature (δ = 0.5, per diode)

0

25

50

75

100

125

150

0

20

40

60

80

100

120

140

T

=tp/T

tp

IF(AV)(A)

Tamb(°C)

δ

Rth(j-a) = Rth(j-c)

Rth(j-a) = 2 °C/W

Rth(j-a) = 5 °C/W

Figure 3. Normalized avalanche power derating versus

pulse duration (Tj = 125 °C)

P

(tp)

P

(10 µs)

ARM

ARM

0.001

0.01

0.1

1

1

10

100

1000

t (µs)

p

Figure 4. Relative variation of thermal impedance junction

to case versus pulse duration

1E -3

1E -2

1E -1

1E +0

5E +0

0. 0

0. 2

0. 4

0. 6

0. 8

1. 0

Single pulse

Zth(j-c) /Rth(j-c)

tp (s)

STPS24045

Characteristics (curves)

DS0753 - Rev 4

page 3/9