Datasheet

STPS1L40 Characteristics
Doc ID 5507 Rev 6 3/11
Figure 1. Average forward power dissipation
versus average forward current
Figure 2. Average forward current versus
ambient temperature (SMA, δ = 0.5)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
T
δ = t
p
/T
t
p
P
F(AV)
(W)
I
F(AV)
(A)
δ = 0.05
δ = 0.1
δ = 0.2
δ = 0.5
δ = 1
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 25 50 75 100 125
R
th(j-a)
= R
th(j-l)
R
th(j-a)
= 120 °C/W
SMA
I
F(AV)
(A)
T
amb
(°C)
150
T
δ = t
p
/T
t
p
Figure 3. Average forward current versus
ambient temperature (SMB, δ = 0.5)
Figure 4. Average forward current versus
ambient temperature
(STmite flat, δ = 0.5)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 25 50 75 100 125 150
I
F(AV)
(A)
T
δ = t
p
/T
t
p
T
amb
(°C)
SMB
R
th(j-a)
= R
th(j-l)
R
th(j-a)
= 100 °C/W
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 25 50 75 100 125
I
F(AV)
(A)
150
T
amb
(°C)
STmite flat
R
th(j-a)
= R
th(j-c)
R
th(j-a)
= 250 °C/W
T
δ = t
p
/T
t
p
Figure 5. Normalized avalanche power
derating versus pulse duration
Figure 6. Normalized avalanche power
derating versus junction
temperature
0.001
0.01
0.10.01 1
0.1
10 100 1000
1
t (µs)
p
P(t
p
)
P (1 µs)
ARM
ARM
0
0.2
0.4
0.6
0.8
1
1.2
25 50 75 100 125 150
T (°C)
j
P(T
j
)
P (25 °C)
ARM
ARM