11

PC3SD21NTZ Series

Sheet No.: D2-A07601EN

✩ For additional design assistance, please review our corresponding Optoelectronic Application Notes.

● Standard Circuit (Medium/High Power Triac Drive Circuit)

Triac

Load

PC3SD21NTZ

Note) Please add the snubber circuit according to a condition.

Any snubber or varistor used for the above mentioned scenarios should be located

as close to the main output triac as possible.

6

5

1

2

4

3

AC Line

Zero Crossing

Circuit