What is a metal shrapnel membrane switch

Netizens ask: What is a metal shrapnel membrane switch? 　　 Expert reply: Metal shrapnel membrane switch, also known as patch type membrane button, has the advantages of long life, low resistance, stable performance, sensitive response, uniform force, etc., and it is also waterproof , Dust-proof and oil-proof.　　Metal shrapnel membrane switch 'Metal shrapnel' is the only metal component in the membrane switch. The determination of its related technical parameters must be designed in accordance with the assembly requirements of the circuit board and the membrane switch. It is mainly used in the membrane switches of the series of rigid boards such as printed circuit boards, giving full play to its three major advantages: strong conductivity, stable rebound, and excellent hand feeling. 　　 At present, many products are blind to the use of metal shrapnel. , Especially in flexible circuits, only use it as a component that provides hand feeling (tactile feedback), which causes many disadvantages in the performance of the membrane switch, and even makes the membrane switch lose its due role.　　 For this reason, our company will start from the selection of the metal shrapnel and the performance of the membrane switch, and conduct a professional introduction, so that the user can promote the correct function of the metal shrapnel under the correct use, and finally complete the maximum practicality of the membrane switch.