5SDF05D2505 V,l(1) (t) t(typ)≤10s 1000 1500 Fig 4 Typical forward voltage waveform when the Fig 5 Forward recovery voltage Vs turn-on di/dt diode is turned on with a high dildt. (max values) En=∫()V()ot di/dt (t) Fig 6 Typical current and voltage waveforms at turn-off when the diode is connected to an RCD snubber, as often used in gto circuits ABB Semiconductors AG reserves the right to change specifications without notice. Doc. No. 5SYA1114-03 Sep 01 page 4 of 65SDF 05D2505 ABB Semiconductors AG reserves the right to change specifications without notice. Doc. No. 5SYA1114-03 Sep. 01 page 4 of 6 Fig. 4 Typical forward voltage waveform when the diode is turned on with a high di/dt. Fig. 5 Forward recovery voltage vs. turn-on di/dt (max. values). Fig. 6 Typical current and voltage waveforms at turn-off when the diode is connected to an RCD snubber, as often used in GTO circuits