#131

I've got a melted relay and it sparks - will a snubber help?

This video is sponsored by https://www.pcbway.com
PCB Prototyping the easy way - see my video #129 for Hands-On details.

All these details and more in my GitHub repository:
https://github.com/RalphBacon/Relays-...

We all know you have to take the specifications of some components (including relays) sourced from the Far East with a pinch of salt sometimes. My 10 Amp mains relay seems to be somewhat underspecified.

Not only that, the spark from the relay every time I switch my power off could rival some firework displays. This I had to sort out with the standard RC (resistor/capacitor) "snubber" circuit - I found a decent set from China but was it any good?

So I had to replace a relay, add a snubber circuit and learn a painful lesson that even small "toy" kits from China can have a bit of a sting in their tails. Ouch. And don't laugh, it hurt!

So my eventual solution was fairly straightforward, but there is a better way, which I mention at the end of the video - something for a future project, perhaps, now that the price of the magic component is low enough.

---------------------------------------------------------------------------------
LINKS LINKS LINKS LINKS LINKS LINKS
(some links may be affiliate links - doesn't alter my editorial one bit)
---------------------------------------------------------------------------------

Snubber module (3 pieces but available singly too):
https://www.banggood.com/3Pcs-RC-Resi...

30A replacement relay (yet to be fitted):
https://www.ebay.co.uk/itm/Hongfa-Eur...

The Arc Ignition Lighter with the hot switch:
https://www.banggood.com/Arc-Ignition...

The 50 Amp Solid State Relay which I might fit instead:
https://www.banggood.com/Solid-State-...

If you like this video please give it a thumbs up, share it and if you're not already subscribed please consider doing so :)

My channel and blog are here:
------------------------------------------------------------------
   / ralphbacon  
https://ralphbacon.blog
------------------------------------------------------------------