Data Sheet

©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC303XM, MOC304XM Rev. 1.6 8
MOC303XM, MOC304XM — 6-Pin DIP Zero-Cross Triac Driver Output Optocoupler (250/400 Volt Peak)
Figure 16. Inverse-Parallel SCR Driver Circuit
(MOC3031M, MOC3032M, MOC3033M)
Suggested method of firing two, back-to-back SCR’s with a Fairchild triac driver. Diodes can be 1N4001; resistors, R1
and R2, are optional 1kΩ.
Figure 17. Inverse-Parallel SCR Driver Circuit
(MOC3041M, MOC3042M, MOC3043M)
Suggested method of firing two, back-to-back SCR’s with a Fairchild triac driver. Diodes can be 1N4001; resistors,
R1 and R2, are optional 330Ω.
Note:
This optoisolator should not be used to drive a load directly. It is intended to be a trigger device only.
V
CC
R
in
1
2
3
6
5
4
115 VAC
SCR
180
R1 D1
SCR
MOC3031M
MOC3032M
MOC3033M
R2 D2
LOAD
V
CC
R
in
1
2
3
6
5
4
240 VAC
SCR
360
R1 D1
SCR
MOC3041M
MOC3042M
MOC3043M
R2 D2
LOAD