In this project we will have a look at solid state relays, find out how they work and when to use them and in the end create our own DIY Solid State Relay. Let's get started!

Step 1: Watch the Video!

The video gives you all the information you need to create your own Solid State Relay. In the next steps though I will present you some additional information.

Step 2: Order the Components!

Here you can find a parts list with example seller (affiliate links):
Aliexpress:

1x MOC3020 Optocoupler: https://s.click.aliexpress.com/e/_dZQvjs7

1x BT138 Triac: https://s.click.aliexpress.com/e/_dXjBcRH

1x 330Ω, 3x 1kΩ Resistor: https://s.click.aliexpress.com/e/_dTPpXjt

2x PCB Terminal: https://s.click.aliexpress.com/e/_dYbstfZ

1x Heatsink: https://s.click.aliexpress.com/e/_dXwflOP

Ebay:

1x MOC3020 Optocoupler: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x BT138 Triac:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x 330Ω, 3x 1kΩ Resistor:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x PCB Terminal:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Heatsink: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

Amazon.de:

1x MOC3020 Optocoupler: http://amzn.to/2jEy2NG

1x BT138 Triac: http://amzn.to/2hLuQQ1

1x 330Ω, 3x 1kΩ Resistor: http://amzn.to/2hMZ7h7

2x PCB Terminal:http://amzn.to/2jEq8ns

1x Heatsink: http://amzn.to/2hLJpCT

Step 3: Build the Circuit!

Here you can find the very simple schematic of my DIY solid state relay along with pictures of my finished board. Feel free to use them as a reference.