SMB5342B 查看數據表（PDF） - PACELEADER INDUSTRIAL
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SMB5342B Datasheet PDF : 3 Pages
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SMB5341B thru SMB5388B
SURFACE MOUNT ZENER TYPE
5.A0MBIENAVERAGE FORWARD CURRENT, (A)
0
5
4.0 75
5
150 0
3.0
2.0
1.0
100
10 7.5 10
5
20 21.5 20 13.5
30 38 30 25.5
40 55 50 49
Range
10
50 70 70 70
68 90 90 90
95 100 100 95
0.0
0
25 50 75 100 125 150 175 200
Lead Temperature ,TL (℃)
Fig. 1 - Power Temperature Derating Curve
40
0
6
1 38
30
20
1
10
100
Zener Voltage, Vz, (Volts)
Fig. 2 - Temperature Coefficients v.s.
Zener Voltage
100
1 15
10 9.6
100 6.8
1000 4.8
10
Vz=100V
10
0
1
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
1
Lead Length to Heat Sink , L, (inches)
10
100
Pulse Width, PW, (ms)
1000
Fig. 3 - Typical Thermal Resistance v.s. Lead Length
Fig. 4 - Maximum Surge Power
100
D=0.5
10
D=0.2
D=0.1
D=0.05
1
D=0.01
D=0
0.1
0.001
0.001
10
0.01
12
1
15
10
17
100
18
0.001
0.2
0.01
0.4
0.1
1
1 4.1
10
15
0.01
100
18
0.001
0.01
0.1
1
10
100
5 0.001
5.6 0.01
7 0.1
9
1
16
10
18 100
2 0.001
2.7 0.01
3.7 0.1
5.5
1
15
10
18 100
1 0.001 0.45
1.8 0.01 0.66
3.1 0.1 1.2
5.3
1 4.4
15
10 15
18 100 18
Note: Below 0.1 second, Thermal
response curve is applicable
to any lead length (L)
Single Pulse ∆TJL=ΘJL(t)PPK
Repetitive Pulse ∆TJL=ΘJL(t,D)PPK
0.1
1
Pulse Width, PW, (ms)
10
100
Fig. 5 - Typical Thermal Response L, Lead Length=3/8inch
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