Processing customization	yes	model	DX-502	Specification and size	150*250（mm）
texture of material	stainless steel	characteristic	Good elasticity and low resistance	purpose	Transmission power
brand	De Xiong

Metal shrapnel (also known as pot or metal dome, snap dome) is made of ultra-thin (0.05mm-0.1mm thickness) and ultra-thick (generally high hardness) stainless steel 301 or 304 materials. Metal shrapnel is an important part of the switch. Metal shrapnel is mainly used in membrane switches, contact switches, PCB boards, FPC boards, medical devices and other products. working principle: The metal shrapnel on the film key is located at the conductive part on the PCB board (most of them are located above the gold finger on the circuit board). When pressed, the center point of the shrapnel is concave and contacts the circuit on the PCB, forming a circuit. The current passes through, and the whole product can work normally. General conventional metal shrapnel can be divided into round metal shrapnel, cross metal shrapnel, triangular metal shrapnel and oval metal shrapnel according to their different shapes. The diameter ranges from 3mm to 20mm and the force ranges from 100g to 600gf. Of course, if you have special requirements to make according to your drawings, there is no problem. In addition, according to the requirements of customers for resistance, our metal shrapnel also has various surface treatments such as nickel plating, silver plating, gold plating and so on.