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Latching Push Button Switch: 12MM 4PIN of Its Working Principle Guide


Product Drawings:

Latching Push Button Switch, a powerful and widely used electronic switch, is the focus of this article. We delve into its working principle, application areas, and selection guidelines, aiming to provide readers with a comprehensive understanding of this critical component and assist them in making informed decisions for practical applications.

Product Parameters:

Production Series FLM12-10FJZ Light Guide Button
Button Shape round Actuator 304 Stainless steel
Button LED Color Red, blue, green, Orange and white Housing Sleeve H59 nickel plated brass/304Stainless stee
Mechanical Life The 500 thousand time Button Pin H62 Copper alloy
Electrical Life The 100 thousand time Rubber Ring SIL silica gel
Protection Level IP65 IK08 Nut H59 nickel plated brass
Rated Voltage 36V(DC) 250(AC) Housing PA66+GF20% nylon
Rated Current 1A(DC)0.5A(AC) Light Source LED
Rated Power 36W(DC)125W(AC) Resistor
Operating Temperature -25℃~+85℃ Ccontact AgCdO12

Push Button Switch Wiring Method:

To install the Latching Push Button Switch on the control panel, follow these steps:

  1. Ensure a 12V voltage supply for the system. Connect the positive pole wire from the power source to the load pin of the switch.
  2. Connect the other load pin of the switch with the LED light wire of the push button switch. This connection will be the positive pole for the device that needs to be controlled.
  3. Connect the negative pole of the device to the negative pole of the LED light pin on the push button switch.

Once the connections are made, the switch is ready for operation. When the push button switch is pressed, the LED light will turn on, indicating that the device has started operating. Pressing the switch again will directly turn off the device.

By following these installation instructions, you can effectively control the operation of a device using the Latching Push Button Switch.

Latching Push Button Switch: 12MM 4PIN of Its Working Principle Guide

The working principle of a Latching Push Button Switch is based on the interaction between a button and a holding circuit.

When the button is pressed, an electrical current flows through the switch, activating the holding circuit to maintain the switch’s state. Within the holding circuit, a relay or a flip-flop circuit is employed to sustain this state until the button is pressed again, prompting a change in the switch’s position.

What is a Latching Push Button Switch?

Latching Push Button Switch is a specialized type of electronic switch with a latching feature. It enables the switching of circuit states with a single button press and maintains the state in either an open or closed position until the button is pressed again.
This mechanism makes Latching Push Button Switch an ideal choice for applications requiring prolonged state retention or the switching of multiple circuits.

Certainly! Here’s a table highlighting the differences between Momentary Push Button Switch and Latching Push Button Switch:

Operation Activated only when button is pressed Toggles and maintains state until intentionally toggled again
Behavior Returns to original state when pressure is released Maintains state (ON/OFF) after button is released
Application Suited for momentary control functions and signaling Ideal for power on/off switches and mode selectors
State Retention Does not retain state once button is released Retains state until intentionally toggled again
Common Examples Doorbell buttons, computer mouse buttons Power switches, reset buttons, mode selectors

Understanding these distinctions will help in selecting the appropriate type of switch based on the specific requirements of your application.

Description of the 12mm 12V Small Red Illuminated Lpush button latching switch:

The 12mm 12V Small Red Illuminated Latching Push Button Switch is a versatile and reliable switch designed for various applications. Its key features and specifications are as follows:

  1. Mounting Hole Size: The switch requires a 12.2mm mounting hole on the push button switch panel for installation.
  2. Waterproof Design: To ensure panel waterproofing, simply insert the switch into the panel, place a 12mm waterproof ring on the panel’s side, and tighten the metal screw cap.
  3. Metal Material Options: The switch is available in three different metal material options, each with distinct functions and advantages:
  • Stainless Steel (304 or 316): Ideal for outdoor use due to its corrosion resistance. Suitable for harsh environments, including seaside areas or places with exposure to sulfuric acid or chemical reactions.
  • Brass (H62): After precision machining and plating, the switch exhibits an attractive appearance at a relatively lower cost. Suited for indoor or automation machine applications.
  • Zinc Alloy: Offers the flexibility of plating the metal appearance in various colors, such as black and red. For long-lasting plating, the use of space plating technology is recommended.
push button switch material

4. Customizable Symbols and Letters: The head of the switch can be customized with a variety of symbols and letters. When the switch is powered on and self-locked, the LED inside the button illuminates, creating a visually appealing effect.

5. Wide Range of Voltages: The switch is available in various voltage options, including 2V, 3V, 6V, 12V, 24V, 110V, 120V, 220V, and more, allowing for compatibility with different power systems.

6. Current and Power Limit: The product has a current rating of 1A at 250V, making it suitable for mechanical equipment with power requirements below 250W.

7. Waterproof and Mechanical Life: With an IP65 waterproof rating, the switch is resistant to dust and water ingress, ensuring reliable operation even in challenging environments. Additionally, it offers a mechanical life of up to 100,000 times, ensuring long-lasting durability.

8. Color Variety: The switch is available in a range of colors, such as red, green, yellow, blue, white, and more. Custom color options can also be accommodated upon request.

9. Functionality and Pins: The product features a single normally open function and is equipped with four pins at the bottom. Two pins are designated for the LED illumination, while the other two pins serve as the switch contacts.

latchingt push button switch

Applications of Latching Push Button Switch

Latching Push Button Switch has a wide range of applications in different fields.

In household appliances, it is used as a power switch or a mode selector, providing users with convenient control over device activation and mode selection.

In automotive electronics, it is often used for functions such as interior lighting control, electric windows and seat adjustment. In industrial control, it is used for control panels and machine operation, to achieve process control and improve operational convenience.

A Latching Push Button Switch can be easily identified by its shape and color. It usually has a round or square button cap that can be pressed down or released.

The button cap can be illuminated by LED or have different colors to indicate its function. For example, red means stop, green means start, etc.

A commonly used 120V latching push button switch is widely applied in various electrical systems and control panels.

Latching Push Button Switch Selection Guide:

When choosing a Latching Push Button Switch, consider the following factors:

Factors Considerations
Current and Voltage Ensure the switch can meet the required electrical specifications.
Requirements The current and voltage rating of the switch should align with the application’s needs.
Switch Type Choose between self-locking and interlocking types based on the desired operation mode.
Self-locking switches maintain their state until manually reset, while interlocking switches require multiple buttons to be pressed simultaneously for operation.
Design and Size Consider the switch’s aesthetics to match the overall design of the equipment or system.
Choose an appropriate size that suits the available space and complements the design.
Installation Requirements Determine the preferred installation method, such as panel mounting or soldering.
Ensure the selected method aligns with the intended application and available resources.

By considering these factors, you can make an informed choice when selecting a Latching Push Button Switch that meets your specific requirements.

Common Brands and Products of Latching Push Button Switch

Multiple renowned brands in the industry offer reliable Latching Push Button Switches that deliver excellent performance. Some of the notable brands include RS Components, FILN, APEM, OTTO Controls, and others. These brands have established themselves as trusted providers of high-quality switches in the market.

The Latching Push Button Switches offered by these brands come in a wide variety of options. They offer switches with different shapes, sizes, operating forces, and terminal types to cater to the specific needs of different applications. Whether you require a compact switch for space-constrained designs or a robust switch for demanding environments, these brands have a diverse range of products to choose from.

By selecting a reputable brand, you can ensure that you are getting a reliable and durable Latching Push Button Switch that meets your requirements. These brands have a strong track record of delivering high-quality products and are known for their commitment to customer satisfaction.

When exploring the market for Latching Push Button Switches, consider these trusted brands and their extensive product offerings to find the most suitable switch for your application needs.


FILN, a reputable company known for its high-quality Latching Push Button Switches, ensures customer satisfaction through its commitment to product excellence and reliable service.

FILN’s push button switches have successfully obtained certifications from renowned authorities, including UL, CE, ROSH, and ISO90001. These certifications guarantee the product’s quality and compliance with international standards, providing customers with confidence in their performance and safety.

Additionally, FILN stands behind the reliability of its push button switches by offering a remarkable 5-year warranty. During this warranty period, if any issues arise with the product, FILN will replace the faulty items free of charge. This demonstrates FILN’s dedication to customer satisfaction and their commitment to delivering top-notch products.

With FILN’s certified and warranty-backed Latching Push Button Switches, customers can trust in the durability, performance, and longevity of their chosen products. By choosing FILN, you are selecting a reliable partner that prioritizes quality and customer service.

How to Buy FILN Pushbutton Switches:

Among them, our 22mm Latching Push Button Switch series is highly regarded. As an industry leader, we have advanced production equipment and technology, capable of producing high-quality, reliable 22mm Latching Push Button Switch.

FILN can not only provide Latching Push Button Switch in standard size, but also customize various sizes and types of products according to customers’ specific requirements.

Our engineering team has extensive experience and expertise to provide customers with individual solutions. Whether you need small size switches or large size switches, or switches of different shapes and colors, FILN can meet your needs.

For your convenience, FILN does not impose a Minimum Order Quantity (MOQ). We are pleased to offer free samples for testing purposes. Whether you require 10, 50, or 100 pieces, you can easily place an order.

Our product packaging consists of 50 pieces per box, with a weight not exceeding 1 kg. To ensure prompt and efficient delivery, we recommend choosing DHL Express as your preferred shipping method.

If your purchase quantity is small, you can conveniently place an order through our website at Rest assured that we will process and ship your order on the same day. For any inquiries or assistance, please feel free to reach us via email at


For customers with significant purchasing volume, we encourage you to contact us directly via email. FILN is committed to providing competitive pricing that aligns with your specific requirements.

Should you wish to acquire our exceptional latching push button switches, kindly email us, and our dedicated team will promptly respond with a tailored design scheme within 24 hours.

At FILN, we strive to offer seamless purchasing experiences and comprehensive support to meet your specific needs. Trust us as your reliable partner for high-quality latching push button switches.


Latching push button:Comprehensive Guide to Latching Push

Latching push button:Comprehensive Guide to Latching Push…Comprehensive Guide to Latching Push Button: Applications, Wiring, Differences

Latching push button switches are integral components in various applications, offering unique functionality diverse use across industries. From underst ing what a latching push button is to exploring its differences from momentary push button switches, wiring diagrams, applications, safety considerations, maintenance tips, this comprehensive guide delves into everything you need to know about latching push button switches. Embark on a journey of discovery. Whether you’re an expert, a hobbyist, or just curious, dive deep to master the world of latching push button switches.

Step 1: Top 10 Most Asked Questions About Latching Push Button

  1. What is a latching push button, and how does it differ from a momentary push button switch? 2. How does the latching button mechanism work? 3. Can you share a wiring diagram for the illuminated latching button? 4. Where is a latching circuit used in industries? 5. How do you wire a 240v latching button? 6. What are the main features of maintained buttons and latching circuits? 7. What are the different types of latching buttons? 8. How to select the right latching push button switch for specific requirements? 9. Where can you find waterproof latching push button switches and what are their applications? 10. What are the safety considerations and maintenance tips for latching push button switches?

Step 2: Underst ing the Latching Push Button Its Differences from a Momentary Push Button Switch

What Is a Latching Push Button? A latching push button is a type of switch that maintains its state after being activated. Unlike momentary push ton switches that return to their default position once released, the latching push ton remains in its current position until it’s pressed again. For more details on what a push button switch is, you can visit this page. Differences Between Momentary and Latching Push Buttons

  1. Functionality: Latching push buttons maintain their state, while momentary switches return to the original state upon release. 2. Applications: Latching switches are often used in applications where continuous on/off state is required, while momentary switches are utilized in temp ary signal transmission scenarios. 3. Wiring: The wiring f latching switches may include a latching mechanism special circuitry, whereas momentary switches are generally simpler to wire.

Step 3: Working of the Latching Switch Mechanism

Underst ing the Latching Switch Mechanism

The latching switch mechanism in a latching push button refers to the design function that allows the switch to maintain its position. Here’s a breakdown of how it works:

  1. Activation: When the push button is pressed, an internal mechanism locks the switch into its current state. 2. Holding Position: The latching mechanism keeps the switch in its activated state until pressed again. 3. Deactivation: Pressing the button again disengages the latch, returning the switch to its original state. Mechanism Types

Different types of latching mechanisms can be found in various applications, such as:

  1. Mechanical Latching: Uses physical components to lock the switch in place. 2. Electrical Latching: Utilizes electrical circuits to maintain the state, such as in a latching momentary switch circuit. Applications

Latching switch mechanisms are used in various applications like home appliances, industrial controls, and automotive systems.

Step 4: Illuminated Latching Push Button Switch Wiring Diagram

Underst ing Illuminated Latching Push Button Switch Wiring

Illuminated latching push buttons come with a built-in light that indicates the switch’s status. Wiring such a switch requires special consideration for both the switch mechanism and the illumination part.

  1. Switch Wiring: Connects the switch terminals to the desired circuit. 2. LED Wiring: Connects the LED within the switch to the power source. Wiring Diagram

A typical illuminated latching push button switch wiring diagram can be found here, detailing the connections for both the switch the LED. Applications

Illuminated latching push buttons are widely used in panels, control systems, user interfaces where visual feedback is essential. Step 5: Wiring a Push Button Latching Switch 240v

How to Wire a Push Button Latching Switch 240v? Wiring a 240v latching push button involves connecting it to a high voltage supply. Here’s a step-by-step guide:

  1. Safety Precautions: Ensure all power is turned off and follow safety guidelines. 2. Connecting Wires: Identify and connect the appropriate terminals. 3. Testing: Test the connection using a multimeter. 4. Mounting: Secure the switch in its desired location. For specific wiring details, refer to this guide. Applications

240v latching push button switches are often found in industrial settings, home automation, and heavy machinery. Considerations

When dealing with 240v, professional installation may be advised due to the high voltage involved. Step 6: Features of Maintained Push Button Switches Latching Momentary Switch Circuits

Key Features of Maintained Push Button Switches

A maintained push button switch, similar to a latching push button, holds its position after being activated. Here are its key features:

  1. Functionality: Maintains its state after activation. 2. Durability: Often designed for long-term use. 3. Applications: Commonly used in systems requiring continuous activation, like lighting controls. You can explore different types of maintained push button switches here. Underst ing Latching Momentary Switch Circuits

Latching momentary switch circuits use electrical components to create a latching effect without a mechanical latch. They can be understood through:

  1. Circuit Design: Typically consists of relays, transistors, and resistors to create a latching effect. 2. Function: Momentarily activated but remains in its state due to the latching circuit. 3. Applications: Often found in applications requiring electronic control without physical latching mechanisms. Step 7: Types Variations of Latching Push Button Switches

Exploring Various Types of Latching Push Button Switches

Latching push button switches come in a variety of types, designs, specifications:

  1. Waterproof Switches: Designed for environments exposed to moisture and liquids. More information on waterproof push button switches can be found here. 2. Illuminated Switches: Feature built-in LEDs to provide visual feedback. 3. Metal Push Button Switches: Made with metal construction for enhanced durability. You can view more details about metal push button switches here. Applications

Different types cater to various industrial, commercial, and residential applications. Selection Considerations

Selecting the right latching push button depends on factors such as voltage, current rating, environmental conditions, specific use cases. Step 8: Selecting the Right Latching Push Button Switch

Considerations for Selecting a Latching Push Button

Selecting the appropriate latching push button switch requires a thorough underst ing of the requirements. Key considerations include:

  1. Voltage and Current Rating: Match the switch’s rating with the circuit’s requirements. 2. Environmental Conditions: Considerfactors like moisture, temperature, and exposure to chemicals. 3. Design and Aesthetics: Choose the appropriate design, size, and color to match the intended use. 4. Certifications and Standards: Ensure the switch meets regulatory requirements and standards. Tips and Resources
  2. Consult Manufacturer’s Guidelines: Manufacturers often provide detailed specifications and guides for their products. 2. Utilize Online Resources: Websites like Indicator Light offer a wide range of latching push button switches, along with helpful information. Step 9: Waterproof Latching Push Button Switches Applications

Underst ing Waterproof Latching Push Button Switches

Waterproof latching push button switches are designed to operate in environments exposed to water other liquids:

  1. Construction: Often made with rubber seals or gaskets to prevent liquid ingress. 2. Rating: Carry specific IP (Ingress Protection) ratings to indicate their level of water resistance. 3. Applications: Commonly used in outdoor equipment, marine applications, and environments prone to splashes or washdowns. Types Sources

Various waterproof latching push button switches, including 16mm waterproof push button switch, offer different designs ratings to cater to different needs. Safety Considerations

When using waterproof switches, ensure proper installation adherence to guidelines to maintain the intended level of protection. Step 10: Safety Maintenance Tips for Latching Push Button Switches

Safety Considerations for Latching Push Button Switches

Ensuring safety while using latching push button switches is crucial. Here are some key considerations:

  1. Proper Installation: Follow manufacturer guidelines and consider professional installation if required. 2. Regular Inspection: Periodically inspect the switches for wear, damage, or other issues. 3. Adherence to Ratings: Do not exceed voltage, current, or environmental ratings. Maintenance Tips
  2. Cleaning: Regular cleaning with appropriate methods depending on the switch type. 2. Replacement: Replace damaged or worn-out switches promptly to prevent failures. 3. Consulting Manuals: Refer to product manuals for specific maintenance guidelines and recommendations. Step 11: Conclusion

Latching push button switches offer diverse applications and functionalities, catering to various industrial and commercial needs. From underst ing the basic latching mechanism to wiring diagrams, selection, safety considerations, this comprehensive guide provides valuable insights into latching push buttons. Whether it’s a waterproof design, illuminated feature, or specific voltage rating, underst ing these aspects allows for effective utilization maintenance of latching push button switches. By following the guidelines and consulting resources like Indicator Light, users can confidently implement and benefit from these versatile switches. Latching switch circuit. Latching switch circuit. Difference between momentary and latching.

Latching push button

Latching Push Button Price Analysis in the USA

Latching push buttons are essential switches that offer convenience and control in various applications. Whether you’re a DIY enthusiast or a professional in the field, understanding the price range of latching push buttons is crucial. In this article, we’ll delve into the world of latching push button prices, exploring different platforms and their offerings.

Price Range Analysis:To get a comprehensive understanding of the price range, let’s take a closer look at some popular platforms:

Amazon:When it comes to online shopping, Amazon is a go-to platform for many. They offer a wide range of latching push buttons, catering to different needs and budgets. Here’s an overview of the price range you can expect on Amazon:

  • Basic latching push buttons: Starting from around $5, these buttons provide reliable functionality at an affordable price point.
  • Advanced latching push buttons: If you’re looking for additional features or specialized designs, prices can go up to $30 or more.

McMaster-Carr:McMaster-Carr is a trusted name in the industrial supply market. They offer a diverse selection of latching push buttons, ensuring you find the perfect fit for your requirements. Here’s what you can expect in terms of pricing:

  • Standard latching push buttons: Prices start from $5, making them accessible for various budgets.
  • Premium latching push buttons: For more advanced options or specialized applications, prices can reach up to $50.

DirectIndustry:DirectIndustry is an online industrial marketplace that connects buyers and sellers. While their prices are listed in Euros, they provide a valuable insight into the European market. Here’s an approximate price range in Euros:

  • Entry-level latching push buttons: Starting from around €20, these buttons offer reliable functionality without breaking the bank.
  • High-end latching push buttons: If you require advanced features or specialized designs, prices can go up to €100.

Digi-Key:Digi-Key is a renowned distributor of electronic components, including latching push buttons. Their pricing may vary based on the specific switch model and features. It’s always recommended to check their website for accurate and up-to-date pricing information.

Note: Prices mentioned above are approximate and may vary based on factors such as supplier, retailer, and location. Always consult the specific supplier for precise pricing details.


When it comes to purchasing a latching push button, it’s crucial to consider your specific requirements and compare prices across different platforms. By doing so, you can make an informed decision and ensure you get the best value for your money.

Remember, latching push buttons offer convenience and control, and finding the right one at the right price is key. So, explore the options, compare prices, and make your purchase with confidence!

Latching push button switch

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