OpenSprinkler Forums Hardware Questions OpenSprinkler Pi (OSPi) OpenSprinkler RasPi 1.2 – Fried Triacs Reply To: OpenSprinkler RasPi 1.2 – Fried Triacs

#45868

Ray
Keymaster

The part is BT1308W (and equivalent substitute: Z0103MN). You can buy these from digikey.com or mouser.com. You can also send a support ticket so that we can ship you a few spare parts. Do note that these are surface mount parts — unless if you have surface mount rework tools, it’s hard to take them off using a soldering iron. Again, if you send a support ticket, we can arrange to repair it at a reasonable cost.

There is a fuse on the 24VAC line to protect shorted circuit. I suspect that this damage might not be due to shorting but due to high transient voltages. OSPi 1.2 does not have built-in TVS diodes which are for protecting the triacs from high transient voltages.

We are currently away till Monday July 21. Orders placed during this time will be shipped on Tuesday July 22. Thank you for your understanding!
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