SMAJ54 データシートの表示（PDF） - Daesan Electronics Corp.
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SMAJ54 Datasheet PDF : 4 Pages
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RATINGS AND CHARACTERISTIC CURVES SMAJ5.0 THRU SMAJ188CA
F ig.
100
1ÐP eak
P uls e P ower R ating C ur ve
Non-repetitive P uls e
Waveform s hown in F ig. 3
T A = 25 oC
10
S MAJ 85 --
S MAJ 188
1
S MAJ 5.0 --
S MAJ 78
0.2 x 0.2" (5.0 x 5.0mm)
C opper P ad Areas
0.1
0.1μs 1.0μs
1 0μs
100μs
1 . 0 ms
td , P uls e Width (s ec.)
10ms
Fig. 3Ð P uls e Waveform
150
tr = 10μ S
T J = 25 oC
P uls e Width (td)
is defined as the point
P eak Value
where the peak current
IP P M
100
decays to 50% of IP P M
Half Value IP P
IP P M
2
50
10/1000μ S W aveform
as defined by R .E .A.
td
0
0
1.0
2.0
3.0
4.0
t , Time (ms )
F ig. 5ÐT ypic al Trans ient T hermal
Impedance
1000
100
10
Fig. 2Ð P uls e Derating C urve
100
75
50
25
0.2 x 0.2" (5.0 x 5.0mm)
C opper P ad Areas
0
0 25 50 75 100 125 150 175 200
T A , Ambient Temperature ( C )
10,000
1,000
Fig. 4Ð Typical J unction C apacitance
T J = 25 oC
f = 1.0MHz
V s ig = 50mV p-p
Measured at
S tand-Off
Voltage, V WM
U ni-D ire c tiona l
100
B i-Directional
10
1
10
100 200
V WM , R evers e S tand-off Voltage (V )
F ig. 6 - Maximum Non-R epetitive F orwar d
S urge C urrent Uni-Direc tional Onl y
200
T J = T J max.
8.3ms S ingle Half S ine-Wave
(J E DE C Method)
100
50
1
0.001
0.01
0.1
1
10
100
tp , P uls e Duration (s ec)
1000
10
1
5
10
50 100
Number of C ycles at 60 Hz
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