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| DFS454 Datasheet, PDF (3/8 Pages) Dynex Semiconductor – Fast Recovery Diode | |||
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DEFINITION OF K FACTOR AND QRA1
dIR/dt
t1
0.5x IRR
IRR
QRA1 = 0.5x IRR(t1 + t2)
t2 k = t1/t2
Ï
CURVES
2000
Measured under pulse
conditions
1750
1500
1250
1000
Tj = 150ËC
750
Tj = 25ËC
500
1.0
2.0
3.0
4.0
5.0
Instantaneous forward voltage VF - (V)
Fig. 1 Maximum (limit) forward characteristics
DFS454
3/8
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