STPS140

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Table 4: Thermal Resistance

Table 5: Static Electrical Characteristics

Pulse test:

* tp = 5 ms,

** tp = 380 µs,

To evaluate the conduction losses use the following equation: P = 0.4 x IF(AV) + 0.10 IF

2

(RMS)

Symbol

Parameter

Value

Unit

Junction to lead

SMA

30

°C/W

SMB

25

Symbol

Parameter

Tests conditions

Min.

Typ

Max.

Unit

Reverse leakage current

12

µA

0.25

2

mA

Forward voltage drop

0.55

V

0.43

0.45

0.65

0.53

0.6

Figure 1: Average forward power dissipation

versus average forward current

Figure 2: Average forward current versus

ambient temperature (

δ = 0.5)

Figure

3:

Normalized

avalanche

power

derating versus pulse duration

Figure

4:

Normalized

avalanche

power

derating versus junction temperature

0.0

0.2

0.4

0.6

0.8

1.0

1.2

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

P

(W)

F(AV)

T

tp

δ = 1

δ = 0.5

δ = 0.2

δ = 0.1

δ = 0.05

I

(A)

F(AV)

0

25

50

75

100

125

150

0.0

0.2

0.4

0.6

0.8

1.0

1.2

I

(A)

F(AV)

T

tp

T

(°C)

amb

R=R

th(j-a)

th(j-I)

SMB

R

=80°C/W

S

=1.5cm

th(j-a)

(CU)

2

SMA

R

=100°C/W

S

=1.5cm

th(j-a)

(CU)

2

0.001

0.01

0.1

0.01

1

0.1

10

100

1000

1

t (µs)

p

P(t )

P

(1µs)

ARM p

ARM

0

0.2

0.4

0.6

0.8

1

1.2

25

50

75

100

125

150

T (°C)

j

P(t )

P

(25°C)

ARM p

ARM