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MOC3021 Datasheet(PDF) 4 Page - Fairchild Semiconductor

Part No. MOC3021
Description  6-Pin DIP Random-phase Optoisolators Triac Driver Output
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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 4 page
background image
Rin
1
2
6
4
360
MOC
3021/
3022/
3023
470
0.05
µF
Figure 8. Typical Application Circuit
3
5
0.01
µF
39
HOT
240
VAC
GROUND
LOAD
VCC
* This optoisolator should not be used to drive a load directly. It is in-
tended to be a trigger device only.
In this circuit the “hot” side of the line is switched and the
load connected to the cold or ground side.
The 39 ohm resistor and 0.01
µF capacitor are for snub-
bing of the triac, and the 470 ohm resistor and 0.05
µF ca-
pacitor are for snubbing the coupler. These components
may or may not be necessary depending upon the particu-
lar triac and load used.
Additional information on the use of optically coupled triac
drivers is available in Application Note AN–780A.
MOC3021, MOC3022, MOC3023




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