While TLP provides clean rectangular pulses up to 100’s of nanoseconds (and pulses with sag up to a couple microseconds), some test applications require much longer pulse duration. For these applications, ESDEMC provides long pulse EOS testing. The EOS is a solid-state pulser that can output clean rectangular pulses from 200ns to 1ms at very fine steps. By default, this is a 50-ohm pulser like the TLP, but different output impedances can be configured if requested. This may be useful in higher-current pulsing. The 50-ohm EOS can output pulses up to 1kV. These tests are often useful for generating SOA curves, Wunsch-Bell curves, or just analyzing transient behavior across a longer timescale.