These devices have been especially designed to protect new high voltage, as well as classical SLICs, against transient overvoltages.
Positive overvoltages are clamped by 2 diodes. Negative surges are suppressed by 2 thyristors, their breakdown voltage being referenced to -VBAT through the gate.
Features
■ Dual programmable transient suppressor
■ Wide negative firing voltage range: VMGL= -150 V max.