U.
R L.
O 1639 EC #E7
Fi le
I GN
ZE
D
TO-220 Isolated
MT2
MT1
T
Internally Triggered Triacs (4 A to 15 A)
E3
General Description
Teccor’s Quadrac devices are triacs that include a diac trigger mounted inside the same package.
This device, developed by Teccor, saves the user the expense and assembly time of buying a discrete diac and assembling in conjunction with a gated triac.
Also, the alternistor Quadrac device (QxxxxLTH) eliminates the need for a snubber network.
The Quadrac device is a bidirectional AC switch and is gate controlled for either polarity of main terminal
voltage.
Its primary purpose is for AC switching and phase control applications such as speed controls, tempe...