How to choose high quality Miniature Micro Switches？
To choose high-quality miniature micro switches, look for features such as durability, precise actuation force, long lifespan, and high sensitivity. Our switches are manufactured with premium materials, ensuring reliability and performance. Our advanced quality control guarantees superior consistency. Choose us for innovative designs, competitive pricing, and unparalleled customer support.
Miniature Micro Switches
A miniature micro switch, also known as a snap-action switch, is an electrical switch activated by minimal force or movement. It’s used across various electronic devices for its reliability and precision. These switches find broad usage in electronics like 3D printers, phones, alarms, and more due to their small size and versatility. They come in different types—ultra-miniature, sub-miniature, lever types—offering various configurations, current ratings, and actuator mechanisms. These switches typically have single-pole double-throw (SPDT) configurations, allowing one input to control two different circuits. They are reliable for logic and low-power switching applications. Miniature micro switches vary in size, including sub-subminiature options, making them adaptable to diverse electronic designs.
Miniature Micro Switches Actuator
A microswitch actuator is a small mechanical device used to control the operation of a microswitch. It activates the switch by applying a physical force, often through a button, lever, or plunger, which triggers the electrical circuit. These actuators are commonly used in appliances, machinery, and control systems for precise and reliable switching with minimal force.
Contact Forms of Miniature Micro Switches
Microswitches are precise, snap-action switches used in various devices for reliable on/off control. They feature quick response, high durability, and are ideal for applications like home appliances, automotive systems, and industrial equipment. Our microswitches offer customizable options to meet your specific needs. Discover our high-quality microswitches today!
SPDT Micro SwitchOur SPDT micro switch offers reliable, precise switching with a long lifespan. Manufactured in China with high-quality materials, it ensures durability and consistent performance. Competitive pricing available.
SPST-NC Micro SwitchThe SPST-NC Micro Switch from our factory in China offers reliable performance, high durability, and precision. With strict quality control, competitive pricing, and fast delivery, it’s perfect for your projects.
SPST-NO Micro SwitchThe SPST-NO Micro Switch from our China-based factory ensures reliable performance, high precision, and durability. Ideal for various applications, it features quick response, long lifespan, and competitive pricing.
Terminals and Apperance (Unit: mm)
Quick-connect terminals (#187) (C2)
Quick-connect terminals (#250) (C)
Solder terminals (A)
With Full Product Certification
What is Miniature Micro Switches？
A microswitch is a type of miniature snap-action switch commonly used in various electronic devices and industrial applications. Known for its precise and reliable operation, it features a small form factor but delivers high accuracy and durability. The switch operates with minimal physical force, making it ideal for detecting mechanical movement or position changes. It is widely used in appliances, automotive systems, safety mechanisms, and control circuits. The robust design ensures long-lasting performance, even in harsh environments. Discover how our high-quality microswitches can enhance your products with unparalleled reliability and efficiency.
Miniature Micro Switches Characteristics
High Sensitivity: Can be triggered by minimal force or displacement.
Short Actuating Travel: Rapid changes in contact state between contacts.
Wide Variety: Internal structures come in hundreds or even thousands of types, classified by volume, protection performance, breaking form, breaking capacity, operating environment, and other criteria.
Long Mechanical Life: Depending on usage requirements, the mechanical life of the switch can range from 30,000 to 10 million cycles.
Miniature Micro Switches Working Principle
The working principle of a microswitch is mainly based on mechanical movement and electrical conduction. When the button is subjected to external force, it compresses the spring and moves the contacts, changing the contact state between them and thereby controlling the on-off state of the circuit. Specifically, when the button is not subjected to external force, the contacts are in an open state; when the button receives sufficient external force, the contacts close, allowing the circuit to conduct electricity; when the external force disappears, the spring returns to its original position, the contacts open, and the circuit is disconnected.
Miniature Micro Switches Application Areas
Microswitches are used for automatic control and safety protection in equipment that requires frequent circuit switching. They are widely applied in the following fields:
- Electronic Devices: Such as computer mice, automotive mice, communication equipment, etc.
- Instrumentation: Used in various testing instruments.
- Mining and Power Systems: For automatic control and safety protection in related equipment.
- Household Appliances: Such as gas water heaters, gas stoves, small household appliances, microwaves, electric rice cookers, etc.
- Electrical Equipment: Used in building automation, power tools, and other equipment.
- Military Applications: Such as aerospace, aviation, ships, missiles, tanks, and other equipment.
- Miniature Micro Switches Action Characteristics Diagram
- Soldering
- Mounting
- Using Micro Loads
- Miniature Micro Switches Characteristics
• Complete the soldering at the iron tip temperature below 350°C within 5 seconds, and do not apply any external force for 1 minute after soldering. Soldering at an excessively high temperature or soldering for more than 5 seconds may deteriorate the characteristics of the Switch.
• Be sure to apply only the minimum required amount of flux. Switch may have contact failures if flux intrudes into the interior of the Switch.
• If the PCB terminal models are soldered in the solder bath, flux will permeate inside the Switch and cause contact failure. Therefore, manually solder the PCB terminal.
• Use M2.3 mounting screw with plane washers or spring washers to securely mount the Switch. Tighten the screws to a torque of 0.23 to 0.26 N·m {2.3 to 2.7 kgf·cm}.
• Mount the Switch onto a flat surface. Mounting on an uneven surface may cause deformation of the Switch, resulting in faulty operation or breakage in the housing.
Using a model for ordinary loads to open or close the contact of a micro load circuit may result in faulty contact. Use models that operate in the following range.
However, even when using micro load models within the following operating range, if inrush current occurs when the contact is opened or closed, it may increase the contact wear and so decrease durability. Therefore, insert a contact protection circuit where necessary.
The N-level reference value applies for the minimum applicable load. This value indicates the malfunction reference level for the reliability level of 60% (λ60).
(JIS C5003)
The equation, λ60=0.5×10-6/operation indicates that the estimated malfunction rate is less than operations with a reliability level of 60%.
| Item Model | V-10 | V-15 | V-16 | V-21 | V-21(IN) | |||||||||||||||||||||||
| Permissible operating speed | 0.1mm to 1 m/s max. (pin plunger models) | |||||||||||||||||||||||||||
| Permissible operating frequency | Mechanical | 600 operations/min max. (pin plunger models) | ||||||||||||||||||||||||||
| Electrical | 60 operations/min | |||||||||||||||||||||||||||
| Insulation resistance | 100MΩ min. (at 500 VDC with insulation tester) | |||||||||||||||||||||||||||
| Contact resistance (initial value) | 15mΩ max. | |||||||||||||||||||||||||||
| Dielectric strength *1 | Between terminals of the same polarity | AC1,000V 50/60Hz 1min | ||||||||||||||||||||||||||
| Between current- carrying metal parts and ground | AC1,500V 50/60Hz 1min | AC1,500V 50/60Hz 1min | AC2,000V 50/60Hz 1min | |||||||||||||||||||||||||
| Between each terminals and non-current- carrying metal parts | AC1,500V 50/60Hz 1min | AC1,500V 50/60Hz 1min | AC2,000V 50/60Hz 1min | |||||||||||||||||||||||||
| Vibration resistance *2 | Malfunction | 10 to 55 Hz, 1.5-mm double amplitude | ||||||||||||||||||||||||||
| Shock resistance *2 | Durability | 1,000 m/s2 {approx. 100 G} max. | ||||||||||||||||||||||||||
| Malfunction | 200 m/s2 {approx. 20G} max. | 300 m/s2 {approx. 30 G} max. | ||||||||||||||||||||||||||
| Durability *3 | Mechanical | 50,000,000 operations min. (60 operations/min) | ||||||||||||||||||||||||||
| Electrical | 300,000 operations min. (30 operations/min) Heat resistive: 50,000 operations min (30 operations/min) | 100,000 operations min. (30 operations/min) Heat resistive: 20,000 operations min (30 operations/min) | 100,000 operations min. (30 operations/min) | |||||||||||||||||||||||||
| Degree of protection | IEC IP40 | |||||||||||||||||||||||||||
| Degree of protection against electric shock | Class I | |||||||||||||||||||||||||||
| Proof tracking index (PTI) | 175 | |||||||||||||||||||||||||||
| Ambient operating temperature | -25 to 105°C (Heat resistive: -25 to 150°C) | -25 to 105°C | -25 to 80°C | |||||||||||||||||||||||||
| -25 to 105°C (V-21 series: -25 to 80°C) (Heat resistive: -25 to 150°C) at ambient humidity of 60% max. (with no icing or condensation) | ||||||||||||||||||||||||||||
| Ambient operating humidity | 85% max. (for 5 to 35°C) | |||||||||||||||||||||||||||
| Weight | Approx. 6.2g (pin plunger models) | |||||||||||||||||||||||||||
Related Products
FAQs
Miniature Micro Switches are commonly used in various applications, and people often have questions about them. Here are five of the most popular FAQs for Miniature Micro Switches:
Welcome to WEUP! Miniature micro switches are smaller versions of standard micro switches, designed for use in applications where space is limited but reliable performance is still required. Despite their compact size, they maintain high reliability and precision, making them ideal for use in various electronic devices.
Great question! Miniature micro switches operate using a snap-action mechanism, where a small force applied to the actuator results in a rapid switching action. This ensures precise and reliable performance even in compact applications, similar to their larger counterparts.
At WEUP, we offer a variety of miniature micro switches, including lever actuated, roller lever, and plunger types. Each type is designed for specific applications requiring precision and reliability in tight spaces.
Miniature micro switches are incredibly versatile. They are commonly used in small household appliances, office equipment, compact electronic devices, and anywhere space is a constraint but high reliability is crucial.
WEUP’s miniature micro switches are made from high-quality materials, including durable plastics and metals. The internal contacts are often made from silver alloy or gold-plated to ensure excellent conductivity and long-lasting performance.
Choosing the right switch depends on your specific requirements. Consider factors such as the required actuation force, the type of actuator (lever, plunger, etc.), and the operating environment. WEUP offers a range of options to suit different applications, and our technical team is always available to assist with your selection.
Our miniature micro switches offer several advantages, including compact size, high precision, and durability. They are designed to provide reliable performance even in the most demanding environments, ensuring your devices operate smoothly and efficiently.
Absolutely! WEUP provides customization options to meet your specific needs. Whether you require a particular actuator style, electrical rating, or housing material, we can tailor our miniature micro switches to match your exact specifications.
Maintaining miniature micro switches is crucial for their longevity. Regular cleaning to prevent dust and debris buildup, avoiding exposure to harsh environments unless specified, and periodic inspections of the contact parts are essential maintenance practices. Following these steps will help ensure reliable performance.
We’re here to help! WEUP offers comprehensive technical support for all our products. Whether you need installation guidance, troubleshooting assistance, or custom solutions, our experienced team is available to support you. Feel free to contact us anytime for expert advice and assistance.