Thyristors

 

International Rectifier manufactures two types of Thyristors or SCRs (silicon controlled rectifiers). The Phase Control SCR provides phase-control of ac signals with a line frequency of 50-60 Hz. The Inverter SCR are used in pulsed power applications involving higher frequencies. The main difference between the two families is the turn-off time (tq). Inverter SCRs typically have a tq of less than 30 microseconds (μs). Similar phase control SCRs have tq ratings of several hundred μs. IR Improves High-Power Modules for Industrial Applications

SCR Application Manual
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