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SMAJ7.0 Datasheet(PDF) 4 Page - UN Semiconducctor INC

Part No. SMAJ7.0
Description  Surface Mount Transient Voltage Suppressors
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Maker  UNSEMI [UN Semiconducctor INC]
Homepage  http://www.unsemi.com.tw
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Surface Mount Transient Voltage Suppressors (TVS)
Revision October 18, 2013
4 / 7
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
SMAJ Series
5.0 To 440 V
400W
UN Semiconductor Co., Ltd.
www.unsemi.com.tw
Figure 1 - Peak Pulse Power Rating Curve
Figure 3 - Pulse Waveform
Ratings and Characteristic Curves (TA=25°C unless otherwise noted)
Figure 4 - Typical Junction Capacitance
0
25
50
75
100
125
150
175
100
80
60
40
20
0
TA-Ambient temperature(°C)
Figure 5 - Steady State Power Derating Curve
Figure 2 - Pulse Derating Curve
Figure 6 - Maximum Non-Repetitive Surge Current
150
100
50
0
tr=10µsec
Peak Value
IPPM
Half Value
IPPM (IPPM/2)
tc
10/1000
µsec. Waveform
as de
fined by R.E.A
0
1.0
2.0
3.0
4.0
TJ=25°C
Pulse Width(td) is de
fined
as the point where the peak
current decays to 50% of IPPM
t - Time (ms)
1.0
0
25
50
75
100
125
150
175
200
0.8
0.6
0.4
0.2
0.0
TL - Lead Temperature(°C)
100
td - Pulse Width (μs)
0.1
1
0.1
1
10
100
1000
10000
10
Number of Cycles at 60Hz
1
10
100
30
20
10
0
40
50
TJ=TJ max.
8.3 ms Single Half Sine-Wave
1.0
10.0
100.0
1000.0
10000
1000
100
1
VBR-Reverse Breakdown Voltage (V)
10
Tj=25
°C
f=1.0MHz
Vsig=50mVp-p
Bi-directional
@zero bins
Uni-directional
@zero bins
Uni-directional @VRWM
Bi-directional @VRWM




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