There are two ways to assemble the metal domes to PCB. First, there are some metal domes with two legs, you just need to insert
the legs to the holes on your PCB. These metal domes are most the triangle shape, it most used in the medical equipments, car alarms
etc. But we not recommnnd to sold on PCB. Secondly, we also have our standard one key metal dome array & custom metal dome array, it’s the
kind that with adhesive film, you just need to peel off from protective paper, and then stick it on the PCB.
You can see the picture as below:
Ok, If you have any quiries, please fell free to contact us.