SMAJ5.0A/CA thru
SMAJ170A/CA
P eak P uls e P ower (P
P P
) or C urrent (I
P P M
)
Derating in P ercentage, %
100
100
P
P P M
— P eak P uls e P ower (kW)
Non-repetitive P uls e
Waveform s hown in F IG . 3
T
A
= 25
o
C
10
75
S MAJ 85 --
S MAJ 170
1
S MAJ 5.0 --
S MAJ 78
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
0.2 x 0.2" (5.0 x 5.0mm)
C opper P ad Areas
0.1
0.1 ms
1.0ms
10 ms
100 ms
1.0ms
10ms
t
d
— P uls e Width (s ec.)
T
A
— Ambient Temperature (
o
C )
FIG.1 – Peak Pulse Power Rating Curve
150
10,000
FIG. 2 –Pulse Derating Curve
I
P P M
— P eak P uls e C urrent, % I
R S M
100
P eak Value
I
P P M
C
J
— J unction C apacitance (pF )
tr = 10
u
s ec.
T
J
= 25
o
C
P uls e Width (td)
is defined as the point
where the peak current
decays to 50% of I
P P M
T
J
= 25
o
C
f = 1.0MHz
V s ig = 50mV p-p
1,000
Meas ured at
S tand-Off
Voltage, V
WM
Uni-Directional
100
Half Value — IP P
2
I
P P M
50
10/1000 s ec. Waveform
as defined by R .E .A.
td
0
0
1.0
2.0
3.0
4.0
B i-Directional
10
1
10
100
200
t — Time (ms )
V
WM
— R evers e S tand-off Voltage (V )
FIG. 3 – Pulse Wavef orm
I
F S M
— P eak F orward S urge C urrent (A)
1000
200
FIG. 4 – Typical Junction Capacitance
T
J
= T
J
max.
8.3ms S ingle Half S ine-Wave
(J E DE C Method)
Trans ient T hermal Impedance (
o
C /W)
100
100
50
10
1
0.001
0.01
0.1
1
10
100
1000
10
1
5
10
50
100
t
p
— P uls e Duration (s ec)
Number of C ycles at 60 Hz
FIG.5 – Typical Transient Thermal
Impedance
FIG.6 - Maximum Non-Repetitive Forward
Surge Current Uni-Directional Only
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