The action of controlling an electronic device, whether it is a home device or an industrial device, can be performed through switch push buttons. Electrical devices are hence equipped with various components that include latching and momentary switches that are used for designated purposes.

In this article, we will explore the differences and similarities of both types in detail and help you select the best switch suitable for your requirements along with their advantages and drawbacks. So just dive in to learn!

Figure no 1 Push button switches

1) What is a Latching Switch?

“A latching switch or toggle or bistable switch is a moveable electrical switch which stays in its last position irrespective of the force applied to change it is no longer there.”

Latching push button switches are in most instances used when devices and systems can be connected and sustained without the need to physically hold the switch. An example of such a switch is the light switch, it only remains illuminated when you switch it on. The illumination ceases until you press the switch again.

Figure no 2 Latching switch

Home appliances, automotive, industrial, electronic devices all make extensive use of push button latch switches. Because they are easy to use and reliable enough for applications that require the device to remain on or off for long periods of time.

2) What is a Momentary Switch?

“Momentary switch offers an electrical input to a circuit only when the switch is pressed. It reverts back upon release to its resting position.”

Momentary switches are best for situations where user require only brief activation. This would include a thumb press switch found on a remote, or a push button switch found on a microphone. When you press a key, it completes a circuit, allowing the device to perform a certain action. However, as long as you release the key, the circuit is cut off, hence all operations cease.

Figure no 3 Momentary switch

➔Momentary switches come in two main types:

• Normally Open (NO): By default, the circuit remains inactive until you press the momentary push button switch and the circuit temporarily closes.

• Normally Closed (NC): By default, the circuit remains active. However, the momentary switch when pressed will open it (cut the output).

Momentary switches find their applications in electronic devices, automotive controls and industrial appliances where short and controlled actions are required.

3) Key Differences Between Latching and Momentary Switches

4) Advantages and Disadvantages

➔ Latching Push Button Switches advantages

+ Stable Position: In any position (on/ off), it needs neither pressure nor power to maintain it.

+ Energy Efficient: Does not use any energy to keep the mechanical designs in a steady position.

+ Convenience: Useful in cases where you have to maintain the same state for some operations, for example lights or power tools.

+ Resistance to Wear: No or very little wear is experienced because actuation is seldom done.

➔ Momentary Push Button Switches advantages

+ Precision: Momentary switches are suitable for actions that need to be temporary since they get control only when the switch is pressed.

+ Simplicity: Having a straightforward design, this type enables easy incorporation into other devices.

+ Energy Efficiency: It consumes energy only during the time of close contact with the metallic surface thus conserving energy.

+ Wide Applications: Used widely in devices such as door frames, keyboard and in other control panels.

➔ Momentary Push Button Switches disadvantages

– Requires Constant Input: Must be constantly pressed since it is in an idle state which can be quite unpleasant in some situations.

– Potential Wear and Tear: This application can cause the surface to wear off quickly with excessive use.

– Limited for Continuous Use: Such switches would not be appropriate for use in systems that need constant on/off cycles.

5) Choosing the Right Switch for Your Application

Before making a selection of a switch for any project, there are important aspects that need to be put into consideration:

• Application Purpose: In situations where machines or lights need to be turned on or off, use a latching switch. But, if there is a need to start motors once or ring doorbells once, then use a momentary switch.

• Frequency of Use: In situations where such switches need to be toggled less frequently, latching switches are most appropriate to use. In applications where a switch is required to be activated many times or for a shorter period of time, momentary switches should be used.

• Energy Efficiency: Power consumption is minimal with a latching switch as there is no need to apply constant electricity to the switch. For short time operations, momentary type switches are effective as they only draw current when in operation.

• Durability: In the case of a switch that is subjected to a great deal of wear and tear or severe conditions, consider a sturdy construction. Look for specifics such as waterproof or dustproof features when exposed to outdoor or industrial applications.

• Design and Fit: Match the style, size, and mounting options of the switch to the device or application. Consider such additional features like the illumination or custom features to serve specific requirements.

Alright! An important news to share with you is that push button technology is also one of the many switches manufactured by CDOE Push Button. CDOE Push Button is particularly well acquainted with latching and momentary switches, so the possibilities appear virtually limitless.

Figure no 4 CDOE push button switches

• Key Highlights of CDOE push button switches:

• Versatility: Our catalog includes waterproof, illuminated, and metal push buttons suitable for diverse applications.

• Customization: There is a custom manufactured solution focusing directly on any industry and personal requirement.

• Durable Designs: The design of these switches allow for frequent and harsh usage while still being able to perform.

• Global Service: CDOE customers are all over the globe and are guaranteed high quality products and timely supply.

So, in case reliable and effective switches are required, CDOE Push Button should be considered the preferred solution due to its high level of innovation in its designs and high level of durability in its products.

6) Conclusion

In a nutshell, the selection between the latching and the momentary push button switches is all about your requirements. If the task is to perform continuously without interrupting the switch, latching switches are the best options. Whereas, if the switch has to be pressed only for a short interval of time, then go for momentary switch. Both types of switches have their respective strengths and weaknesses which is important to consider in order to make the appropriate choice. With the use of quality switches offered by reputable manufacturers like CDOE Push Button, it is easy to expect the best performance and extended lifecycle of push buttons in any application.