U n i o n w e l l

Automotive Micro Switch Expert

Unionwell has been deeply involved in providing OEM and customized solutions for snap action micro switches for many years. Our products can be tailored to meet the specific requirements of various applications. Our switches meet the demands for long-term safe operation across diverse industries, including home appliances, automotive, and industrial sectors under complex working conditions.

As a leading manufacturer, Unionwell is committed to delivering high-quality, high-stability snap action micro switches to manufacturers worldwide. Our snap action micro switches includes: waterproof micro switches, car charging gun switches, automotive seat adjustment switches, basic micro switches, and etc.

Furthermore, our products have obtained multiple international certifications, such as ISO9001, IATF16949, ISO14001, ENEC, UL/cUL, CE, and CB.

If you are unsure which type of snap action micro switch fits your needs, please contact us. We will get back to you within 24 hours!

Introduction to snap action Micro Switches

Snap action micro switches are indispensable basic components, widely used in critical applications such as car charging guns micro switch, microwave ovens door switches, and industrial limit switches. Their primary function is to accurately detect changes in mechanical position, operational state, or travel, and convert these changes into stable electrical signals rapidly, thereby ensuring the safety and reliability of various types of equipment.

In terms of safety and compliance, our snap action micro switches have obtained numerous global safety certifications, including ISO9001, IATF16949, ISO14001, ENEC, UL/cUL, CE, and CB, meeting the stringent electrical safety and reliability requirements of major international markets.

Unionwell offers OEM and customized solutions for snap action micro switches, ensuring they meet the diverse requirements for performance, lifespan, and protection levels from various manufacturers. The picture shows Unionwell's most classic automotive micro switch model—the G303 Automotive Car Door Lock Switch.

automotive micro switch g303 series drawing

Our snap action micros witches, with their excellent wide temperature range, mechanical life, and electrical life, are widely used as the home appliance micro switches, automotive micro switches, industrial control micro switches, etc.

They are mainly used for status detection, position feedback, limit control and safety interlocking, and provide a variety of customizable installation methods and operation types.

automotive micro switch
G3 Series
G5 Series
G6 Series
G9 Series
G19 Series

Sealed Subminiature Micro Switch

The G3 series sealed subminiature micro switch features an IP67 sealed design, making it suitable for complex home appliance environments. It boasts an electrical life of 100,000 cycles, with a stable contact structure ensuring reliable conduction under long-term high-frequency operation.

Equipped with various types of terminals, this product facilitates compact circuit board layouts and high-volume production soldering. The diverse range of operating lever designs allows these switches to adapt to various equipment configurations, significantly enhancing operational safety. They are widely applied in fields such as automotive control, home appliances, and industrial control systems.

Key Features of Snap Action Micro Switches

waterproof micro switch

snap action micro switches are crucial status detection and control components. Due to the complex environment and extremely high requirements for reliability, environmental adaptability, and safety compliance, snap action micro switches are typically designed and manufactured around the following core advantages.

High reliability and long service life

snap action micro switches generally adopt snap-action structure, which can complete stable switching within a very small stroke, effectively reducing contact jitter and signal misjudgment.

At the same time, with high-reliability contact materials and precision manufacturing processes, snap cation micro switches can achieve more than millions of stable operations, meeting the needs for reliable operation.


Waterproof and dustproof design

The environments in which different devices operate are complex and varied. Snap action micro switches typically employ a sealed, waterproof, and dustproof structure, achieving a protection rating of IP67 or IP68.

Furthermore, snap action micro switches exhibit excellent environmental adaptability, maintaining stable and reliable performance over a wide temperature range of -40°C to +80°C.


Customizable actuator and
lever design

To meet diverse application needs, snap action micro switches typically support a variety of customized solutions.

Common forms include push-button and roller types. These designs can be precisely matched to different systems, enabling stable triggering and reliable operation of the switch within limited space.


Possess certifications

Unionwell's snap action micro switches have obtained ISO14001, ISO9001 and IATF16949 quality assurance system certifications.

At the same time, they have passed multiple global safety certifications, such as UL, ENEC, CQC, etc., ensuring that they meet internationally recognized standards in terms of electrical safety, insulation performance and durability.

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High Reliability Snap Action Micro Switch for Robot Vacuum Cleaner

A leading global smart home device manufacturer sought a highly reliable and compact switching solution for its latest generation of robotic vacuum cleaners. The customer required a switch for use in the main power start/stop module that could withstand one million presses while maintaining a small and compact product design. Therefore, the customer outlined three key requirements: ultra-small size, long mechanical life, and precise tactile feedback.

Unionwell specifically designed the G10 series subminiature micro switches to meet the customer's needs in the smart cleaning industry. Key features of the G10 series solution:

Subminiature size: The G10 series features an extremely compact design (12.8 × 5.8 × 6.5 mm) that allows for seamless integration into the robot's main control panel without affecting internal PCB layout or battery space.

Tactile precision and responsiveness: We optimized the operating force to provide a crisp click feel, ensuring users receive immediate tactile confirmation when starting or pausing the device, thus enhancing the user experience.

Long Mechanical Life: To withstand the daily wear and tear of household appliances, the G10 uses high-quality springs and contacts, boasting a mechanical lifespan exceeding 1 million cycles.

Global Safety Certifications: This solution fully complies with UL, cUL, ENEC, and CQC standards, ensuring the robotic vacuum cleaner meets the stringent safety and export requirements of the North American and European markets.

Integrating Unionwell's snap action micro switches significantly improves the reliability of the customer's Robotic Vacuum Cleaners. The consistent tactile feedback of the switches has improved vehicle reliability in expert consumer reviews, resulting in consistently strong sales. Unionwell's snap action micro switch solution provides the renowned home appliance brand with the perfect balance of durability and precision, and both parties are extremely satisfied with this collaboration.

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