EMI:

Electro-Magnetic Interference.

Gold Flash:

A plating of gold typically less than 10 micro-inches (millionths) thick. Used only as a barrier to oxidation or corrosion of terminals to maintain solderability.

Insert Mold:

In switches used to refer to terminations that are placed in the mold so that plastic is molded around the terminations. The chief benefit is an inherent seal against the intrusion of flux into the body of the device. Therefore, no epoxy terminal seal is...