STPS140 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
STPS140 Datasheet PDF : 7 Pages
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STPS140
Table 4: Thermal Resistance
Symbol
Rth(j-l) Junction to lead
Parameter
SMA
SMB
Value
30
25
Unit
°C/W
Table 5: Static Electrical Characteristics
Symbol
IR *
VF **
Parameter
Reverse leakage current
Forward voltage drop
Tests conditions
Tj = 25°C
Tj = 100°C
VR = VRRM
Tj = 25°C
Tj = 125°C
IF = 1A
Tj = 25°C
Tj = 125°C
IF = 2A
Min.
Pulse test:
* tp = 5 ms, δ < 2%
** tp = 380 µs, δ < 2%
To evaluate the conduction losses use the following equation: P = 0.4 x IF(AV) + 0.10 IF2(RMS)
Typ
0.25
0.43
0.53
Max.
12
2
0.55
0.45
0.65
0.6
Unit
µA
mA
V
Figure 1: Average forward power dissipation
versus average forward current
Figure 2: Average forward current versus
ambient temperature (δ = 0.5)
PF(AV)(W)
0.7
0.6
δ = 0.1
δ = 0.05
δ = 0.2
δ = 0.5
0.5
δ=1
0.4
0.3
0.2
T
0.1
IF(AV)(A)
δ=tp/T
tp
0.0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
IF(AV)(A)
1.2
1.0
Rth(j-a)=Rth(j-I)
SMA
0.8
Rth(j-a)=100°C/W
S(CU)=1.5cm2
0.6
0.4
T
SMB
Rth(j-a)=80°C/W
S(CU)=1.5cm2
0.2
δ=tp/T
tp
0.0
Tamb(°C)
0
25
50
75
100
125
150
Figure 3: Normalized avalanche power
derating versus pulse duration
PARM(tp)
PARM(1µs)
1
0.1
0.01
0.001
0.01
0.1
tp(µs)
1
10
100
1000
Figure 4: Normalized avalanche power
derating versus junction temperature
PARM(tp)
PARM(25°C)
1.2
1
0.8
0.6
0.4
0.2
0
25
50
Tj(°C)
75
100
125
150
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