FAIRCHILD SEMICONDUCTOR - MOC3052-M

hi i have a question here...what is the difference between MOC3052-without zero crossing circuit and MOC3081-MMOC3081-M with zero crossing circuit? can i replace MOC3052 to MOC3081?

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RWM over 14 years ago +1

It depends on application. MOC3081-M MOC3081-M is intended for on/off switching of load and MOC3052 can also be used for e.g. dimming. MOC3081 with zero crossing circuit switches on when voltage is rising…

0 RWM over 14 years ago

It depends on application. MOC3081-MMOC3081-M is intended for on/off switching of load and MOC3052 can also be used for e.g. dimming. MOC3081 with zero crossing circuit switches on when voltage is rising from zero, so it can switch on load generating low noise, but cannot be used when phase control is needed. MOC3052 can swich on load at different phases, so it can be used in dimmer, motor speed control etc.
Additionally MOC3081-MMOC3081-M has higher LED trigger current (15mA) than MOC3052 (10mA).
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0 Nicos_2023. over 2 years ago

There is another type of MOC30xx who works exactly like MOC3052 but has higher maximum working voltage (e.g. 800 V instead of 600 V ?)

thanks !

Nicos
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