Tactile and Non-Tactile membrane switches

JRPanel Erin KOU JAN 14, 2020

The most economical and reliable design is the non-tactile membrane switch. Non- tactile membrane switch is flat and has no tactile feedback. However, this design relies on other methods of identifying a feedback or that a connection is made.

These include indicator LEDs (visual), LCD screen (visual), or a sound(audible). In other words, an LED light can blink or a beeping sound can be heard when a button is pressed. This type of non-tactile membrane switch has the longest life cycle and reliability.

The other type of membrane switch is the tactile membrane switch. Tactile membrane switch is very popular because it provides a direct feedback to users that a connection is made.

One way to design a tactile membrane switch is to dome emboss the keys on the graphic overlay. Although it is a little bit more cost that a non-tactile or flat membrane switch, and requires an embossing tool, it is still a common way to provide tactile feedback when needed.

Another design option for a tactile membrane switch is to emboss the upper switch layer or poly-dome. This will also require an embossing tool. One drawback is that this type of tactile membrane switch provides a milder tactile response and less snap action. Also, it is sensitive to temperature and therefore, high temperature conditions may affect its snap feedback. The best way to get the optimum snap and tactile feedback is to use a metal dome.

Metal domes can get expensive especially if the membrane switch has a lot of keys. It is also recommended that the graphic overlays where the keys are, should be full embossed to accommodate the metal dome height. Therefore, an emboss tool may still be required. One thing to consider when using metal domes for tactile membrane switch is that it needs a rigid backing, so that when the metal dome is pressed down, it does not get inverted.

An inverted metal dome, is one of the major failures of a tactile membrane switch and is mostly due to the metal dome being bent or deformed when assembling to the plastic housing, and/or pressing the keys when there is lack of rigid support.

---------------

Topspeed manufacture fab for

Membrane switch, Graphic Overlay & Acrylic Overlay

Online instant quote

www.jrpanel.com

Comments

Brief Introduction to Flat Spiral Coil Inductors

Hi guys! Today JRPanel would like to share a few points about Flat Spiral Coil Inductors with you. Basically, a flat coil inductor is an inductor wound with flat copper wire. The picture below is the side view, we can see that each circle of copper wire is arranged very compact. Here are some of the application characteristics of flat coils : 1. High current inductance 2. Lowest DC resistance 3. Can ensure smooth drop of current-resistant inductance 4. Suitable for reflow SMT process 5. Lead-free, RoHS compliant This pciture shows a flat coil product. It is generally used in power supplies, personal computers and other handheld electronic devices . Advantages of F lat C oil I nductors are : 1. Scientific and reasonable space design. 2. Tight and flat between turns ensures the effective cross-sectional area of the wire, which greatly reduces the copper loss ...

Identify Different Types of Transformer Cores, Based on Materials

Hi guys, this is JRPanel ! In previous blog s, we have introduced several points about High Frequency Transformer, like bobbins and Flat Spiral Coil . In this blog, JRPanel would like to introduce the commonly used magnetic cores in transformers , based on materials. Generally speaking, the material of the core determines the environment in which the transformer is used. A transformer that uses a core of a different material will have its performance affected, may even be non-functional. By material, magnetic cores are generally divided into the several categories . JRPanel will introduce them one by one to help you understand more fully. 1. Manganese Zinc Ferrite Core Mn-Zn core is a soft magnetic core with high initial permeability (2000~15000). The higher the initial permeability, the lower the surface resistance, so it is generally used in circuits below 1 MHz. Mn-Zn core has a high saturation ...

The Real Voice of JRPanel Users From All Over the World

Since the birth of the brand, JRPanel has been upholding the goal of becoming a "one-stop professional intelligent manufacturer" , having witnessed the successful output of hundreds of customized products for enterprises. B ecause of this long-term goal that JRPanel has grown and become famous in the overseas manufacturing market for its "High Q uality", " F ast D elivery", and " Excellent S ervice" . As of May 2022, JRPanel's products have been exported to 40 countries and regions. However, no matter how a company promotes its brand, it is not as real as a few simple comments from customers. So what do JRPanel's partners say about JRPanel? In this blog, we will select some representative comments and show them based on four aspects: high product quality, excellent service, intelligent platform and rapid delivery. This will help you understand the true image of JRPanel in the minds of our partners around the world. (The follo...

JRPanel

Search This Blog