General designs
© KEB, 2015-07 COMBIVERT R6-N Page6.1 - 7
6
6.1.6 Dimensioning of decoupling diodes
R6 Material number Type Volume Ta [°C] Th [°C] Rha [K/W]
15 0090147-3500 1600 V / 80 A 2 45 90 1,50
19 0090147-4101 1600 V / 120 A 2 45 90 0,84
25 0090147-6009 1600 V / 560 A 2 45 90 0,19
29 0090147-6009 1600 V / 560 A 2 x 2 45 90 0,09
Legend
Ta: maximumambienttemperature
Th: maximumheatsinktemperature
Rha: requiredthermalresistanceoftheheatsinkatratedoperation
(thermalvalueofthethermalcompound≥0.5W/(m*K))
6.1.7 Overload characteristics
OL release time at load reduction
Decremental time
for OL release [s]
0
20
40
60
80
100
120
140
160
180
200
220
240
0 10 20 30 40 50 60 70 80 90 100 110
Load [%]