SMAJ SERIES
■特性曲线（典型）
Characteristics(Typical)
图
1
：最大脉冲功率曲线
FIG1:Peak Pulse Power Rating Curve
PPP or IPP(%)
PPPM(KW)
100
不重复脉冲波�½�见图
3
Non-Repetitive Pulse
Waveform shown in Fige.3
TA=25℃
图
2
：脉冲功率或电流与结温关系
FIG2: Pulse Power or Current vs. Initial Junction Temperature
100
75
10
50
SMAJ85-
SMAJ188
1.0
SMAJ5.0-
SMAJ78
25
0.2×0.2"(5.0×5.0mm)
Copper Pad Areas
0.1μs
1μs
10μs
100μs
1.0ms
10ms
td(μs)
0.1
0
0
25
50
75
100
125
150
175
200
TJ
（℃）
图3：脉冲波�½�
FIG3: Pulse Waveform
IPPM(%)
图
4
：典型瞬态热阻
FIG4:Typical Transient Thermal Impedance
Rth(
℃
/W)
4.0
t（ms）
150
tr=10μs
1000
Peak Value
IPPM
TJ=25
℃
Pulse Width(td) is defined as
the Point where the Peak
Current Decays to 50% of IPPM
100
Half Value - IPP
2
IPPM
100
50
10/1000μs Waveform as
Defined by R.E.A.
10
td
0
0
1.0
2.0
3.0
1
0.001
0.01
0.1
1
10
100
1000
tp(s)
图
5
：最大不重复浪涌电流
FIG5: Maximum Non-Repetitive Surge Current
IFSM(A)
100
80
60
40
TJ=TJMax.
8.3
毫秒正弦半波
8.3ms Single Half Sine-Wave
20
10
0
5
10
100
周波数
Number of Cycles
Document Number 0239
Rev. 1.0, 22-Sep-11
扬州扬杰电子科技�½�股�½有限公司
Yangzhou Yangjie Electronic Technology Co., Ltd.
www.21yangjie.com
YANGJIE [ YANGZHOU YANGJIE ELECTRONIC CO., LTD ]
