A. While venting is not absolutely necessary for every application, it is desirable in almost all applications. When the dome is depressed, air is trapped underneath it. To avoid compressing the air under the dome when actuated, it is recommended that a vent channel be present. The venting of the dome can be achieved a number of different ways. Some Examples:
a.) vent channel can go from dome to dome via a spacer layer
b.) dome arrays can be top vented through the polyester material
c.) vent channel can go through the board.

Not properly venting the dome will result in significant loss of tactile response.

A. Not recommended. When the domes are pushed, the feet actually move outward slightly. When soldered to a circuit board, the feet of the domes are restricted from their natural movement. This restriction can negatively affect the tactile response of the domes, and in some cases, cause irreparable damage to the domes.

A.Note this is only an online showroom of our products. Please contact us for detailed goods. When you confirm the price list, you can send us an order list, including style no, quantity, price and Total. After we received your order list, we will check our store and revise quantity according your order list (so we can deliver as soon as possible after we received your remittance) then send you the PI (Proforma Invoice) with delivery cost to you. We will hold the order six days, so please remit in the valid time and inform us. We will send out your goods upon receipt of your payment.