参数资料
型号: SMF78AT1G
厂商: ON Semiconductor
文件页数: 4/6页
文件大小: 0K
描述: TVS ZENER 175W 78V SOD123FL
标准包装: 3,000
电压 - 反向隔离(标准值): 78V
电压 - 击穿: 86.7V
功率(瓦特): 200W
电极标记: 单向
安装类型: 表面贴装
封装/外壳: SOD-123F
供应商设备封装: SOD-123FL
包装: 带卷 (TR)
其它名称: SMF78AT1GOS
SMF5.0AT1G Series, SZSMF5.0AT1G Series
TYPICAL PROTECTION CIRCUIT
Z in
10,000
V in
LOAD
t r
V L
PULSE WIDTH (t P ) IS DEFINED
AS THAT POINT WHERE THE PEAK
CURRENT DECAYS TO 50%
1000
100
OF I RSM .
PEAK VALUE ? I RSM
t r ≤ 10 m s
HALF VALUE ? RSM
100
50
t P
I
2
10
1.0
10
100
1000
10,000
0
0
1
2
3
4
t P , PULSE WIDTH ( m s)
Figure 1. Pulse Rating Curve
t, TIME (ms)
Figure 2. 10 X 1000 m s Pulse Waveform
100
90
80
70
60
50
40
30
20
10
t r
t P
PEAK VALUE I RSM @ 8 m s
PULSE WIDTH (t P ) IS DEFINED
AS THAT POINT WHERE THE
PEAK CURRENT DECAY = 8 m s
HALF VALUE I RSM /2 @ 20 m s
160
140
120
100
80
60
40
20
0
0
20
40
60
80
0
0
25
50
75
100
125
150
t, TIME ( m s)
Figure 3. 8 X 20 m s Pulse Waveform
http://onsemi.com
4
T A , AMBIENT TEMPERATURE ( ° C)
Figure 4. Pulse Derating Curve
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