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The principle of touch switch and its advantages and disadvantages

December 29 , 2021

The touch switch is a modern electronic component switch, which belongs to the category of electronic appliances. Touch switches are widely used in household appliances due to their small size and lightweight, such as video products, digital products, remote controls, communication products, household appliances, security products, toys, computer products, fitness equipment, medical equipment, money detector pens, Laser pointer button, etc. But the touch sensor switch button also has its shortcomings: frequent pressing will make the metal shrapnel fatigue and lose its elasticity and become invalid. So now most electrical buttons are directly replaced by conductive rubber or metal shrapnel for pot switches, such as computer keyboards and remote controls. So the question is, what is the principle of the touch switch? What are its advantages and disadvantages?

Touch Sensor Switch Button

Principle of touch switch.


The touch switch is an electronic switch, which can be turned on by lightly pressing the switch button when in use. When the hand is released, the switch is disconnected, and the internal structure is disconnected by the force of the metal shrapnel.


When the voltage is normal, the electromagnetic attraction is sucked into the armature, and the main contact can be closed. When the voltage drops severely or the power is cut off, the armature of the Panasonic air switch is released and the main contact is disconnected. When the power supply voltage returns to normal, it must be shut down again before work to achieve voltage loss protection. The protection of people is also very good.

Touch Sensor Switch Button

Advantages of touch switches.


The advantage of the touch switch is that it is suitable for high-density surface installation, some can be cleaned after welding, the seal can be dustproof, it is suitable for harsh environments, and the circuit design is simple. The product life span ranges from 100,000 to 10 million. The product has become a series. But the touch switch also has its disadvantages. Frequent pressing will cause the metal shrapnel to fatigue and lose its elasticity and fail. The touch buttons cannot produce function independently and must be used in conjunction with the PCB circuit board to form a complete turn-on control system.


Disadvantages of touch switches:


1. Touching the touch switch too frequently will cause its metal shrapnel to fatigue and lose its elasticity, leading to the failure of the touch switch. In fact, this is a common problem of electronic switches. Frequent use of any electronic components will accelerate aging.


2. In addition, the touch switch cannot generate functions independently, that is, the touch switch needs the cooperation of other PCB circuit boards to form a complete switch control system.

Author: Written by Ms.Anna Zhang from S4A INDUSTRIAL CO., LIMITED


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  S4A-Security For All.S4A Industrial Co., Limited, Founded in 2010, We have been dedicating in access control production R&D and sales for 10year till now. With the belief that we do one thing well in a lifetime, our CEO has been in this industry for 15 years. During the past 10 years, our products have been exported to various countries and regions. And 90% of customers come from the recommendations of cooperative customers, and 80% of the turnover comes from cooperative customers in the past 10years.Your business is a plant, we are the gardener, our mission is to water and fertilize the plant, and make it become the towering tree. We attach great importance to the partner's appeal, customer's suggestions, and feedbacks. To strengthen Product quality awareness, client's service awareness. Our clients and S4A are on the same path walking for many years.       S4A's future would be even more brilliant, this is related to all of our staff's working sweat. When you join this team, you will feel an invisible power to drive walk forward. S4A mainly produces a series of security Door Access Control such as:Network Access Controller, Locker board, Electromagnetic lock, Standalone door Controller, Automatic door opener, etcOur team can manufacture products, sell products, and do after-sales.In the realm of access control, one company stands out for its unwavering commitment to providing security services for everyone. S4A, which stands for "Security for All," has been at the forefront of access control technology for the past 13 years. With its own state-of-the-art factory and a strong focus on research and development, S4A has continuously delivered cutting-edge access control machines with the latest functions. Their dedication to product quality, customer feedback, practicability, and cost performance sets them apart as a leader in the industry.Factory and R&D Expertise:S4A takes pride in its fully-equipped factory, where skilled engineers and technicians work tirelessly to develop and manufacture access control solutions that meet the highest standards. The company's investment in research and development has resulted in a steady stream of innovative products that cater to evolving security needs.By staying ahead of the curve, S4A ensures that their customers have access to the latest advancements in access control technology.Quality Assurance and Customer Feedback:At S4A, product quality is of paramount importance. The company adheres to rigorous quality control procedures throughout the manufacturing process to guarantee the reliability and durability of their access control machines. Each product undergoes comprehensive testing to ensure it meets industry standards and exceeds customer expectations. S4A also places great value on customer feedback, actively seeking input to continuously improve their products and services. By listening to their customers, S4A maintains a customer-centric approach and delivers solutions that address real-world security challenges.Practicability and Cost Performance:S4A understands that access control solutions must not only be technologically advanced but also practical and cost-effective. The company's emphasis on practicability means that their products are designed to be user-friendly, easily integrated into existing systems, and adaptable to various environments. S4A's access control machines are known for their intuitive interfaces, simple installation processes, and seamless compatibility with other security systems. Additionally, S4A strives to provide cost-effective solutions without compromising on quality. Their competitive pricing ensures that security is accessible to businesses and individuals of all sizes.With 13 years of industry experience, S4A has cemented its position as a leading provider of access control solutions. Through their dedication to "Security for All," the company has set a benchmark for excellence in product quality, customer satisfaction,practicability, and cost performance. S4A's in-house factory and research and development capabilities enable them to stay at the forefront of technological advancements in the field of access control. As the company continues to evolve and innovate, S4A remains committed to empowering individuals and organizations with the highest level of security, ensuring that everyone can enjoy the peace of mind that comes with a reliable and efficient access control system.We can create value for you!Quality takes great importance for a company's credibility, and buyer's every penny spend must worth it. That is our most basic principle. Our business mainly for wholesale, so we could offer large quantities at competitive prices. During the past 10 years, We work hard to create value for our customers, and with our help, customers have an increasing market share. 99% of the customer...<
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