The L401E5 is a Sensitive Triac acts as a bidirectional AC switch and is gate controlled for either polarity of main terminal voltage. It is used primarily for AC switching and phase control applications. This Triac features a glass-passivated junction; this glassing process prevents migration of contaminants and ensures long term device reliability with parameter stability. The epoxy TO-92 configurations feature Teccor"s electrically-isolated construction where the case or mounting tab is internally isolated from the semiconductor chip and lead attachments.