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SMAJ7.0 Datasheet(PDF) 5 Page - Yangzhou yangjie electronic co., ltd

Part No. SMAJ7.0
Description  Transient Voltage Suppressor Diodes
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Maker  YANGJIE [Yangzhou yangjie electronic co., ltd]
Homepage  http://www.21yangjie.com/
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扬州扬杰电子科技体股份有限公司
Yangzhou Yangjie Electronic Technology Co., Ltd. 
Document Number 0239
Rev. 1.0, 22-Sep-11
www.21yangjie.com
SMAJ SERIES
■特性曲线(典型) Characteristics(Typical)
0.1μs1μs10μs100μs1.0ms
10ms
0.1
td(μs)
1:最大脉冲功率曲线
FIG1:Peak Pulse Power Rating Curve
1.0
100
10
不重复脉冲波形见图
3
Non-Repetitive Pulse
Waveform shown in Fige.3
TA=25℃
0.2×0.2"(5.0×5.0mm)
Copper Pad Areas
SMAJ85-
SMAJ188
SMAJ5.0-
SMAJ78
010
100
10
周波数
Number of Cycles
5:最大不重复浪涌电流
FIG5: Maximum Non-Repetitive Surge Current
100
40
20
60
80
TJ=TJMax.
8.3毫秒正弦半波
8.3ms Single Half Sine-Wave
5
0200
0
TJ(℃)
2:脉冲功率或电流与结温关系
FIG2: Pulse Power or Current vs. Initial Junction Temperature
100
50
25
75
175
150
125
100
75
50
25
04.0
0
t(ms)
3:脉冲波形
FIG3: Pulse Waveform
150
50
100
3.0
2.0
1.0
TJ=25
Pulse Width(td) is defined as
the Point where the Peak
Current Decays to 50% of IPPM
10/1000μs Waveform as
Defined by R.E.A.
tr=10μs
Peak Value
IPPM
Half Value - IPP
2
IPPM
td
0.001
0.01
0.1
1
10
1000
1
tp(s)
4:典型瞬态热阻
FIG4:Typical Transient Thermal Impedance
1000
10
100
100




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