Yueqing Tongda Micro Snap Switch Undergoes Iterative Launch, Snap-Action Patented Technology Empowers Precise Control

Yueqing, November 15, 2025 — Yueqing Tongda Wired Electric Factory, with 35 years of experience in switch manufacturing, recently announced that its Micro Snap Switch series has completed technical iteration and achieved large-scale mass production. Leveraging the independently developed patent for "rapid reset triggering mechanism", the series has realized three major upgrades in response speed, environmental resistance, and adaptation flexibility, and has successfully partnered with leading enterprises in industrial automation, smart homes, consumer electronics and other fields, becoming the preferred choice for precise control solutions in the segmented market.

As a micro switch category centered on "instant triggering", the Micro Snap Switch is widely used in key links such as equipment stroke detection and function start-stop. Its snap-action feature directly affects the control precision and response efficiency of equipment. This iteration specifically optimizes three major industry pain points: "trigger delay, low-temperature failure, and limited adaptation". It adopts the patented snap-action mechanism, with a trigger response time of ≤5ms, 60% faster than traditional models. The trigger stroke is adjustable from 0.3-0.8mm, and the operating force ranges from 2-5N, accurately matching the sensitivity requirements of different equipment. The contacts are upgraded to silver-palladium alloy material, treated with vacuum coating, with an initial contact resistance of ≤15mΩ, an electrical lifespan of 100,000 cycles, and a mechanical lifespan exceeding 2 million cycles, meeting the needs of high-frequency triggering scenarios.

The comprehensive enhancement of environmental adaptation capability is the core highlight of this upgrade. The protection level covers IP40 basic version, IP65 dustproof and waterproof version, and IP67 sealed version. The IP67 model adopts an integrated potting process, which can resist immersion in 1-meter water depth, making it suitable for harsh environments such as humidity and dust. Meanwhile, the product maintains a micro size of 20×12×8mm and supports three installation methods: through-hole mounting, soldering mounting, and snap-on mounting, eliminating the need for modifying equipment installation positions and improving adaptability by 40%.

A strict quality control system ensures Micro Snap Switch reliability. Relying on a fully automated precision assembly line, the key dimensional error is controlled within ±0.01mm, and each finished product must pass 9 tests including high-low temperature cycle, salt spray corrosion, and one-million-time pressing. Currently, the product has obtained international certifications such as UL, VDE, and CQC, complies with the IEC 61058 standard for industrial automation and the RoHS directive for consumer electronics, and maintains a 100% factory qualification rate.

The market application results are remarkable: in the industrial automation field, the customized version supporting a brand of sensors realizes precise control of robotic arm stroke, reducing the equipment positioning error to ±0.1mm; in the smart home scenario, it is adapted as the limit switch for smart curtains and electric clothes dryers, and the user satisfaction with operating experience reaches 95% after the improvement of response speed; in the consumer electronics field, used as the function button of portable printers, there is no performance degradation after 2 million cycles of lifespan testing, winning bulk additional orders from customers.

"The iteration of the Micro Snap Switch is the technical implementation of our focus on the core needs of snap-action switches," said the enterprise's technical director. In the future, we will continue to optimize the product's power consumption and intelligence level, develop intelligent models with signal feedback, further expand emerging scenarios such as new energy and medical equipment, and consolidate the leading position in the segmented market.