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S1ZAx
1.4
1.2
1
0.8
0.6
Derating Curve
PCB
(Alumina substrate)
1-circuit current
2-circuit current
(Glass-epoxy substrate)
1-circuit current
2-circuit current
0.4
0.2
0
0 20 40 60 80 100 120 140 160
Ambient Temperature Ta [°C]
Alumina substrate
Soldering land 1mmφ
Conductor layer 20µm
Substrate thickness 0.64mm
Sine wave
R-load
Free in air
Glass-epoxy substrate
Soldering land 1mmφ
Conductor layer 35µm