<div dir="ltr"><div><div><div>Heya Robin,<br></div> Please excuse my probable deep ignorance, but why do you not use a very standard MOC3041?? Available at.. well everywhere! (Sicom have them locally)<br><br></div>Am using a mix of MOC3041 and MOC3063 in my solar hotwater controller for pumps and heaters... they are very reliable, unlike other parts 8)<br><br></div>Jasper<br></div><div class="gmail_extra"><br><div class="gmail_quote">On 28 December 2014 at 11:22, Robin Gilks <span dir="ltr"><<a href="mailto:robin@gilks.org" target="_blank">robin@gilks.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Greetings all<br>
<br>
I'm going to have to change the way I drive the triacs on my irrigation<br>
controller as I think the asymmetric switching I'm currently using is<br>
causing a DC component to get to the solenoids and blowing them up (8-9 of<br>
them so far this year at over $40 a pop!)<br>
<br>
The simplest mod I can come up with is to put zero switching opto triacs<br>
between the existing drivers and triacs - that only requires a 4 pin DIL<br>
and 1 or 2 resistors (times 32 for the number of channels on the<br>
controller)<br>
<br>
The Toshiba part TLP361J(F) available from Digikey looks like it will do<br>
the job but I'm pretty sure you need an account to get stuff from them.<br>
Can anyone assist in this area?<br>
<br>
Cheers<br>
<br>
--<br>
Robin Gilks<br>
Internet: <a href="mailto:robin@gilks.org">robin@gilks.org</a> <a href="http://www.gilks.org" target="_blank">http://www.gilks.org</a><br>
Tel: <a href="tel:%28%2B64%29%20%283%29%20347%204370" value="+6433474370">(+64) (3) 347 4370</a><br>
<br>
<br>
<br>
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