How to choose APPROPRIATE Metal Dome (Snap dome)?

As a sourcing or purchasing , In the light of how to choose RIGHT Metal dome , Which is almost a tough or headache thing .

Cause it’s difficult to distinguish its Applicability and function by the appearance , Especially is those inexperienced sourcing people .

Then how to choose APPROPRIATE Metal dome ? Here , we as over 20 years experiences in the METAL DOME manufacturing ,

GuangHongDa Technology spread the basis knowledge about the METAL DOME Selecting

In short , In terms of shape : Metal dome can be sorted 4 types :

• ROUND Snap dome (Metal dome) : Minimum Trip
• 4-Legged Snap dome (Metal dome ) : Maximum Trip
• Triangle Snap dome (Metal dome ) : with feet is more popular for choosing
• Oblong Snap dome (Metal dome ) : Priority to smaller diameter
• Accept to custom depend on different required specification

ADVANTAGE & DISADVANTAGE:

ROUND Snap dome (Metal dome) : Lower trip and good feeling even no clear sound ; Normally which is used for Metal dome array ,

Also to save unnecessary space

TRIANGLE Snap dome (Metal dome) : As its design , It will have one dimple in the center and 3 dimples distribute in other 3 each side .

assemble on the PCB directly , While w/o Feet(wing) is used in the D/S layer polyester pressure tape to be supplied with peel off backing

Oblong Snap dome (Metal dome) : Generally it’s used in the Single or separate keypad , Also used in the small contact area Plus closed circuit layout

4-Legged Snap dome (Metal dome) : Generally its higher trip , Have clear sound , Also used in the field of children’s toys & electronic scale etc , Which force is higher than any other type of metal dome