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SMAJ7.0A Datasheet(PDF) 3 Page - Littelfuse

Part No. SMAJ7.0A
Description  TVS Diode Products
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Maker  LITTELFUSE [Littelfuse]
Homepage  http://www.littelfuse.com
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Silicon Avalanche Diodes
256
www .littelfuse .com
400W Surface Mount Transient Voltage Supressors
SMAJ Series
Ratings and Characteristic Curves TA=25˚C unless otherwise noted
Fig. 1 Peak Pulse Power Rating
Fig. 3 Pulse Waveform
Fig. 5- Typ. Transient Thermal Impedance
Fig. 6- Maximum Non-Repetitive Peak
Fig. 4- Typical Junction Capacitance
Fig. 2 Pulse Derating Curve
td- Pulse Width (sec.)
TA- Ambient Temperature (˚C)
0.1µs
1.0µs
10µs
100µs
1.0ms
10ms
0.1
1
10
100
0.2x0.2"(5.0x5.0mm)
Copper Pad Areas
0
0
0
0.1
1.0
10
100
50
100
150
1.0
2.0
3.0
4.0
0.001
0.01
0.1
1
10
100
1000
1
10
100
200
20000
10000
1000
100
10
1.0
10
100
200
10
100
0
25
25
50
50
75
75
100
100
125 150 175 200
tp- Pulse Duration(sec)
Number of Cycles at 60Hz
VWM-Reverse Stand-Off Voltage (V)
Forward Surge Current
tr=10µsec
Peak Value
IPPM
Half Value IPPM
2
TJ=25˚C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of IPPM
10/1000µsec. Waveform
as defined by R.E.A
td
TJ=TJ MAX
8.3 Single Half Sine-Wave
(JEDEC Method)
Undirectional Only
Uni-Directional
Bi-Directional
TJ=25˚C
f=1.0MHZ
Vsig=50mVp-p
VR, Measured at
Stand-Off
Voltage, VWM
Non-repetitive pulse
waveform shown in
Fig.3 T
A
= 25˚C
Uni-Directional
Bi-Directional
®
RoHS




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