Figure 5. Average forward current versus ambient

temperature (δ = 0.5)

IF(AV)(A)

0

1

2

3

4

5

6

0

25

50

75

100

125

150

175

Rth(j-a) = Rth(j-l)

T

δ= tp/T

tp

SOD123Flat

Tamb(°C)

SMA Flat Notch

Figure 6. 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 7. Relative variation of thermal impedance junction

to ambient versus pulse duration

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.E-02

1.E-01

1.E+00

1.E+01

1.E+02

1.E+03

Single pulse

SMA

Zth(j-a)/Rth(j-a)

tp(s)

Figure 8. Relative variation of thermal impedance junction

to ambient versus pulse duration

Zth(j-a)/Rth(j-a)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.E-02

1.E-01

1.E+00

1.E+01

1.E+02

1.E+03

Single pulse

DO-41

tp(s)

Figure 9. Relative variation of thermal impedance junction

to ambient versus pulse duration

Zth(j-a)/Rth(j-a)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.E-02

1.E-01

1.E+00

1.E+01

1.E+02

1.E+03

Single pulse

STmite flat

tp(s)

Figure 10. Relative variation of thermal impedance

junction to lead versus pulse duration

Zth(j-l) /Rth(j-l)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.E-04

1.E-03

1.E-02

1.E-01

1.E+00

1.E+01

Single pulse

SOD123Flat

tp(s)

STPS1L60

Characteristics (curves)

DS2133 - Rev 12

page 5/19