1.1

Characteristics (curves)

Figure 1. Average forward power dissipation versus

average forward current (per diode)

0

10

20

30

40

50

60

70

0

2

4

6

8

10

12

14

16

18

20

T

=tp/T

tp

= 0.2

= 0.5

= 1

= 0.05

= 0.1

PF(AV)(W)

IF(AV)(A)

δ

δ

δ

δ

δ

δ

Figure 2. Average forward current versus ambient

temperature (δ = 1, per diode)

0

25

50

75

100

125

0

10

20

30

40

50

60

70

T

=tp/T

tp

IF(AV)(A)

Tamb(°C)

δ

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

Rth(j-a) = 2.5 °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

1E +1

0. 1

0. 2

0. 5

1. 0

Single pulse

tp (s)

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

STPS120L15

Characteristics (curves)

DS1246 - Rev 7

page 3/9