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D255K Datasheet(PDF) 4 Page - eupec GmbH |
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D255K Datasheet(HTML) 4 Page - eupec GmbH |
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4 / 5 page ![]() D255K Bild / Fig. 5 Differenz zwischen den Wärmewiderständen für Pulsstrom und DC Difference between the values of thermal resistance for pulse current and DC Parameter: Stromkurvenform / Current waveform Bild / Fig. 6 Sperrverzögerungsladung / Recovered charge Qr = f(-di/dt) tvj = tvjmax; vR ≤ 0,5 VRRM; VRM = 0,8 VRRM Beschaltung / Snubber: C = µF; R = Ω Parameter: Durchlaßstrom / Forward current IFM Analytische Funktion / Analytical function: n max ZthJC = Σ R thn (1-EXP(-t/ τ n)) n=1 Rthn τ n Pos. n 1 2 3 4 5 6 7 °C/W 0,00113 0,00635 0,00932 0,142 0,126 0,0552 [s] 0,000057 0,000754 0,00958 0,213 2,05 10,4 Analytische Elemente des transienten Wärmewiderstandes ZthJC für DC Analytical elements of transient thermal impedance ZthJC for DC Bild / Fig. 7 Transienter innerer Wärmewiderstand Transient thermal impedance ZthJC = f(t), DC 1 - Beidseitige Kühlung / Two-sided cooling 2 - Anodenseitige Kühlung / Anode-sided cooling 3 - Kathodenseitige Kühlung / Kathode-sided cooling [ µAs] Qr -diF /dt [A/µs] 10 3 D255K_7 1 10 100 0,1 9 8 7 6 5 4 3 2 9 8 7 6 5 10 2 iFM [A] 800 400 200 100 50 25 0 30 60 90 120 150 180 0,04 0,02 Θ [°el] 0,06 0,08 0,10 D255K_3 [°C/W] thJC ∆R T Θ T Θ Θ T 0,4 0,3 0,2 0,1 0 Z(th)JC [°C/W] D255K_2 10 -3 10-2 10-1 100 101 102 t [s] |
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