T Series Metal Domes

T-series metal domes(snap domes) are triangle shape switches that can be mounted on double-sided printed circuit boards, on flex circuits, or in membrane switch panels, and they are widely used in the electronic toys, desktop phones, medical equipments.

The size of the T series metal domes is from 4mm to 12mm, and the force is from 100g to 3000g. The advantage of the T series metal domes in the same diameter is that with the higher actuation force, normal the force can over the 600 gram. 

As most of the triangle metal domes have two legs, you can insert into the hole of circuit board, it can be fixed on circuit without any adhesive tape, it will save much time and cost for production. But we don't recommend to sold the metal dome to PCB, it will affect the function, such as the life cycle and clicking feeling.

According to the structure of the T series metal domes, it divided into four items:

1. NT-series: Without legs

2. ST-series: With two short legs: 0.8*0.8mm(width * length of the legs)

3. MT-series: With two middle legs: 0.8*1.5mm

4. LT-series: With two long legs: 0.8*3.0mm

triangle metal dome

According to the thickness of the PCB, you can select the suitable legs, then insert the legs to the holes of the PCB to be fixed.

If you have the inquiry of the T series metal domes, please contact us anytime, we are glad to be at your service.


Metal Dome Specifications:

1.Materail: SUS301, SUS304

2.Plating: Nickel Pating

3.Diameter: 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm.

4.Actuation Force: 150g, 180g, 200g, 250g, 280g, 320g, 350g, 400g, 450g, 500g, 550g, 600g.

5.Contact resistance: <100 ohms; with Nickel< 10 ohm.

6.Operating & Storage Temperature: -55℃ to 85 ℃.