Inverter Grade Thyristors (Capsule Type)
Thyristors may be used to bond a source of stored energy, such as a capacitor to a load, or to bypass and protect the load in the case of a crowbar circuit. In these pulsed power applications where the rate of rise of current is very fast, the pulse power switch is acting as a closing switch and ordinary phase control thyristors (SCRS) are probable to fail due to the high di/dt experienced?
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 is used in pulsed power applications connecting 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 has tq ratings of several hundred µs.
|Device||VRRM/ VDRM||IT(AV)||TC||VTM||ITM||ITSM||di/dt||dv/dt||IGT||VGT||IRRM/ IDRM||TVJ||Tq||Rth(j-c)||Mounting||Outline|