3SF21 View Datasheet(PDF) - Sharp Electronics

Part Name

Description

Manufacturer

3SF21

Zero cross type DIP 6pin Phototriac Coupler for triggering

Sharp Electronics 

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

PC3SF21YVZ Series

PC3SF21YVZ

1

6

2

5

3

4

Zero Crossing

Circuit

Load

Triac

AC Line

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.

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

Sheet No.: D2-A08101EN

9

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