1.1

Characteristics (curves)

Figure 1. Average forward power dissipation versus

average forward current (per diode)

0

1

2

3

4

5

6

7

8

9

10

0

1

2

3

4

5

6

7

8

IF(AV) (A)

= 0.05

= 0.1

= 0.2

= 0.5

= 1

T

=tp/T

tp

PF(AV)(W)

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

175

0

1

2

3

4

5

6

7

8

9

Tamb (° C)

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

Rth(j-a) =15°C/W

T

=tp/T

tp

IF(AV)(A)

δ

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

0. 0

0. 2

0. 4

0. 6

0. 8

1. 0

tp(s )

Single pulse

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

STPS16150C

Characteristics (curves)

DS2251 - Rev 3

page 3/9