All About Clicky Switch Mechanisms

All About Clicky Switch Mechanisms

For many keyboard enthusiasts, the satisfying "Clicky-clack" of a mechanical keyboard is like music for the ears. But what creates that sound? The secret lies in the heart of the keyboard – the clicky switch mechanism. In this blog, we'll embark on a journey through the fascinating world of clicky switches, unraveling the mysteries behind their stem, actuator, click jacket, and spring.

What are Clicky Switches?

Clicky switches are a type of mechanical switch used in keyboards. Unlike their silent counterparts, clicky switches offer tactile and audible feedback when you press a key. Many typists find this feedback satisfying—the click-clack sound that comes with each keystroke.

What Are Clicky Switch Mechanisms?

At its core, a clicky switch mechanism is a type of technology found in keyboards that gives users tactile and audible feedback when they press a key. When you type on a keyboard with clicky switches, you can feel and hear a distinctive click with every keystroke. It improves typing satisfaction and helps users know when a key has registered successfully.

Clicky switches are one of the three main mechanical keyboard switches, alongside linear and tactile switches. Each type offers a different typing experience, and the choice often comes down to personal preference.

Components of Clicky Switches

To understand the mechanism behind their characteristic click sound, let's explore the components that work together when we press a key.

Components of Clicky Switches

1. Stem:

At the heart of every clicky switch mechanism lies the stem, a seemingly simple yet pivotal component that transforms each keystroke into a tactile and auditory delight. The stem acts as the conduit between your fingers and the keyboard's intricate world, precisely orchestrating the symphony of movement and feedback.

The stem comprises two integral parts: the slider and the actuation bump. The slider, a small piece typically crafted from plastic, slides vertically within the switch housing as you press a key. Its role is similar to that of a guide, ensuring a smooth and controlled journey for the keycap. Simultaneously, the actuation bump, a tiny but critical protrusion on the slider, determines the exact moment a key registers as pressed. This coordination between a slider and an actuation bump is the secret sauce behind the clicky switch's distinctive tactile feel.

Clicky Switch Mechanisms

As you press a key, the slider glides along, with the actuation bump dictating the point of no return—the point at which the key registers a press. The deliberate and noticeable bump enhances the tactile feedback, providing typists with a physical sensation similar to the feel of a mechanical switch engaging. This combination of precise movement and tactile response makes clicky switches unique, making each keystroke a tangible and satisfying experience.

Moreover, the stem's role extends beyond tactile feedback; it acts as the linchpin for the entire switch mechanism. By connecting the keycap to the switch housing, the stem facilitates the transfer of motion and force, ensuring that every press results in a responsive and controlled movement.

The stem's significance lies not only in its mechanical functionality but also in the immersive typing experience it crafts, making clicky switches a preferred choice for those who relish the artistry of typing. In simple terms, the stem is the silent maestro behind the clicky symphony, conducting a seamless blend of movement and feedback with every tap of the keys.

2. Actuator:

When we press a key, the actuator moves in unison with the slider until it encounters the actuation bump, a small raised portion on the slider surface. At this critical juncture, the actuator experiences a sudden drop, triggering the switch to register the keypress. This swift motion and engagement with the actuation bump determine when a key is activated and contribute to the distinct tactile feel of clicky switches.

The actuator's role extends beyond mere functionality, influencing the audible click associated with each keypress. Its orchestrated interplay with the click jacket, another integral part of the switch, produces the satisfying sound that typifies the clicky switch experience. In essence, the actuator serves as the maestro of the clicky switch orchestra, directing the harmony of tactile feedback and audible clicks that typists find both responsive and gratifying.

3. Click jacket:

The click jacket stands out as a key player in creating the audible click that accompanies each keystroke. Located within the switch housing, it is a critical component that adds an auditory dimension to the tactile experience of clicky switches.

The click jacket, typically crafted from durable plastic, serves as the conductor orchestrating the sound of each keystroke. Its design is intricate yet purposeful, with two arms that engage with the actuator during a key press. As you press a key, the slider – a part of the stem – moves within the switch housing, causing the actuator to descend. This action triggers the click jacket to come into play.

Click jacket

The two arms of the click jacket are strategically positioned to interact with the actuator's movement. When the actuator drops, the arms of the click jacket snap against each other, creating a sharp and distinctive click sound. This audible feedback provides typists with a satisfying confirmation of their keystrokes and also contributes to the overall typing experience.

The click jacket's role goes beyond generating sound; it is a crucial part of the tactile feedback that clicky switches are renowned for. The interaction between the click jacket and the actuator creates a tactile sensation that typists can feel with each keypress. This synchronization between the click jacket and other components, such as the actuator and spring, produces a harmonious blend of tactile and auditory feedback, making clicky switches a favorite among users who seek a more engaging and responsive typing experience.

In essence, the click jacket is a key element in the symphony of a clicky switch mechanism, adding a distinct click sound to the tactile orchestra of each keystroke. Its precision and responsiveness contribute to the overall appeal of mechanical keyboards, transforming typing into a multisensory experience that enthusiasts and professionals alike appreciate.

4. Spring:

The spring within a clicky switch mechanism is responsible for the tactile brilliance and responsive bounce that typifies the typing experience. It is crafted from coiled metal and is strategically positioned beneath the slider in a keyboard switch, providing the necessary resistance for each keystroke.

When you press a key, the spring compresses, storing potential energy. This compression produces a satisfying resistance, indicating to the user that the keypress was registered. The spring's role extends beyond resistance; it acts as a dynamic force, propelling the slider and keycap back to their initial positions when the key is released.


The spring's controlled rebound is crucial for the overall typing feel. It offers users a tactile response that aids in key recognition and reduces the likelihood of accidental key presses. The spring's resilience and flexibility ensure a swift return to the resting position, ready for the next keystroke. In essence, the spring is the powerhouse behind the clicky switch, transforming each press and release into a seamless, rhythmic dance, enhancing the efficiency and satisfaction of the typing experience.

In conclusion, the clicky switch mechanism is a symphony of carefully crafted components working together to deliver a satisfying and responsive typing experience. The stem, actuator, click jacket, and spring each play a unique role, contributing to the distinct tactile feedback and audible click that characterize clicky switches. 

Explore a diverse range of mechanical keyboard clicky switches at Keychron, featuring options like the Keychron Kailh Switch Set and renowned Cherry MX Switches. Elevate your typing experience with craftsmanship and cutting-edge technology. Find the ideal switch for a personalized and exceptional typing journey with Keychron's premium mechanical keyboard switches.

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