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SMAJ7.0A Datasheet(PDF) 4 Page - Leshan Radio Company

Part No. SMAJ7.0A
Description  SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR
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Maker  LRC [Leshan Radio Company]
Homepage  http://www.lrc.cn/
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2.Ratings and Characteristic Curves ( TA = 25
°C unless otherwise noted )
SMAJ*** Series
Fig. 1-Peak Pulse Power Rating Curve
Fig. 2-Pulse Derating Curve
Fig. 3-Pulse Waveform
Fig. 4-Typical Junction Capacitance
Unidirectional
Fig. 6-Maximum Non-Repetitive Peak
Forward Surge Current Uniderictional
100
10
1.0
0.1
0.1
1.0
10
100
1000
10000
td,Pulse Width,μsec
TA,Ambient Temperature,°C
0
25
50
100
125
150 175 200
50
100
150
0
t,Time,ms
0
1.0
2.0
3.0
10000
1000
100
10
1.0
10
100
1000
V(WM),Reverse Stand-off Voltage,Voltage
100
10
1
10
100
Number of Cycles At 60 Hz
125
100
50
0
Non-Repetive
Pulse Waveform
Shown in Fig.3
TA=25°C
tf=10μs
Peak Value
Ippm
Half Value
Ipp/2=td
TA=25℃
Test Waveform
tf=10μs td=1000μs
TJ = 25°C
f = 1.0 MHz
Vsig = 50mVp-p
meansured at
stand-off voltage
VWM
TJ = TJ max
8.3ms Single Half Sine-wave
(JEDEC Method)
10/1000μs Waveform
as deffused by R.E.A
SMAJ5.0~78
SMAJ85A~170
Uni-Directional
Bi-Directional
Fig 5. –typical transient thermal
impedance
10
1.0
0.1
100
0.01
0.1
1.0
10
100
t,Pulse duration,sec




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