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The main specifications of touch switches include: environmentally friendly and high-temperature resistant touch switches, patch type touch switches, plug-in type touch switches, side plug-in type touch switches, large/medium/small turtle type touch switches, 2 * 4 touch switches, 3 * 3 touch switches, 3.7 * 3.7 * 0.3 incoming touch switches, 4 * 4 * 1.5/1.6/17mm touch switches, 3 * 6 * 4.3/5.0mm automotive touch switches, 4 * 6 * 2.6 touch switches, 4.5 * 4.5 * 3.8/4.8/5/0/6/7/8/9 patch type touch switches, and plug-in type touch switches, Side three release light touch switch, 6 * 6 * 4.3/5.0/5.5/6/7/8/9/9.5/10/11/12/13/14/15/16/17/18/19/20/21/26mm light touch switch, patch light touch switch, plug-in light touch switch, 6.2 * 6.2 * 2.5/2.7/3.1/3.4 light touch switch, 12 * 12 * 4.3/5.0/5.5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23mm light touch switch. 6 * 6 series waterproof touch switch, 8 * 8 series waterproof touch switch, 10 * 10 series waterproof touch switch, 12 * 12 series waterproof touch switch.

The factors that affect the quality of a light touch switch are mainly determined by factors such as its protection, solderability, conductivity reliability, lifespan, hand feel, production process, and installation size.

1. Pin substrate: The pin substrate of the light touch switch is brass or phosphor copper (low-grade iron). To reduce contact resistance, the pins are basically silver plated, as silver will oxidize when it encounters SO2 gas in the air, directly affecting the solderability and contact resistance of the switch. Therefore, for high-quality light touch switches, the first step is to control the silver plating thickness and silver plating process of the pin substrate. The order of advantages and disadvantages of silver plating in the market is as follows:

Silver plating thickness: above 0.3um (rear silver), 0.2um (thin silver), 0.1um (white plating);

Silver plating process: pre nickel plating and silver plating on the substrate, pre copper plating and silver plating on the substrate, and direct silver plating on the substrate;

Whether the substrate is treated with protective agents after silver plating or whether the switch has dustproof and waterproof functions is crucial, otherwise even with the best silver plating treatment, the switch will still be oxidized.

2. The key factor affecting the reliability of conduction is the structure of the contact point, because the function of a light touch switch is to conduct contact between the contact point and the elastic piece. The larger the contact surface of the contact point, the better. The contact surface is determined by the structure. There are approximately three types of structures on the market, with the order of advantages and disadvantages being as follows: large bubble (crater type) "O-type contact", slotted type "2-point contact", and flat bubble type "1-point contact".

3. Life and feel: Life and feel are determined by the stroke of the light touch switch and the coordination of the spring piece. The shorter the stroke, the lighter the sound, and the longer the lifespan. The longer the stroke, and vice versa. In the case of fixed spring piece technology, the lifespan of the light touch switch is mainly determined by the stroke or sound; In addition, the key factor determining the lifespan of the shrapnel is still stamping technology. Previously, stamping technology in Japan and Taiwan was already quite popular in China. Therefore, with the improvement of technology, the requirements for imported materials should be further reduced. For example, there are four main types of 160GF shrapnel lifespan in the market: around 50000 cycles (domestic phosphor copper or relatively backward stamping technology), around 100000 cycles, over 200000 cycles (stainless steel), and 300000 cycles.

4. Production process: With the availability of accessories, the final factor that affects quality is the assembly process. The assembly process depends on factors such as the management ability of the production company, employee quality awareness, and quality assurance ability. The final product quality produced by different assurance abilities is definitely different. Currently, there are manual and machine assembly methods in the market, and due to the further improvement of automation capabilities, each has its own advantages and disadvantages: machine assembly costs are low, but product quality is low, The cost of manual assembly is high, but the quality is also high.

5. Factory inspection: The method and items of factory inspection also affect the quality of the final touch switch, such as whether the appearance, feel, conductivity, resistance, and other items are spot checked or fully inspected. For example, some large factories require a scrap rate measured by PPM or zero defects, so it is necessary to set up spot checks or quality audits after setting up a full inspection in the factory inspection.