PCB Base Keyboards

The Core Components of a PCB Keyboard

A typical mechanical keyboard is layered like a sandwich, with the PCB acting as the brain and backbone:

• The PCB: The fiberglass board with copper tracks. It holds the microcontroller (the "brain") and the contact pads for every single key.

• Switches: Mechanical switches sit on top of the PCB. When you press a key, the switch stems bridge a connection on the PCB, sending a signal to your computer.

• The Plate (Optional but Common): A metal, plastic, or carbon fiber plate often sits above the PCB to lock the switches firmly in place.

PCB Mount vs. Plate Mount

When building or buying a keyboard, you will often run into the distinction between PCB-Mounted and Plate-Mounted components. This drastically changes the feel, sound, and assembly process:

1. Switches

• PCB-Mounted Switches (5-Pin): These switches have two extra plastic alignment pins on the bottom (making 5 pins total) designed to snap directly into holes on the PCB. They can be used without a reinforcing plate, giving the keyboard a flexier, softer typing feel.

• Plate-Mounted Switches (3-Pin): These only have the center round stem and the two metal electrical pins. They rely entirely on a metal or plastic plate above the PCB to stay straight and secure.

2. Stabilizers (For large keys like Spacebar and Enter)

• PCB-Mount Stabilizers (Screw-in or Clip-in): These attach directly into the PCB itself. They are highly favored by enthusiasts because they are incredibly secure, rattle less, and won't pop out when you pull off a keycap.

• Plate-Mount Stabilizers: These clip directly into the upper switch plate. They are easier to remove but tend to wobble more, leading to a louder, more "rattly" spacebar.

Hot-Swappable vs. Soldered PCBs

If you are looking at PCB-base keyboards, you’ll need to choose between two main types of circuit boards:

Why Choose a Custom PCB-Base Layout?

Building around a specific PCB allows for extreme customization that standard mass-produced keyboards don't offer:

• Programmability: Most enthusiast PCBs run on open-source firmware like QMK or VIA. This allows you to remap any key, program macros, and control RGB lighting directly on the hardware level.

• Acoustics: Keyboards without a plate (pure PCB-mounted) have a deeper, springier, and quieter sound profile, which many typists prefer over the stiff, metallic "ping" of plate-heavy keyboards.

Keetronics ( India ) Pvt. Ltd., a prominent PCB manufacturers and suppliers in India, is offering the best quality of PCB (printed circuit board), which is a new modern technological automation used for connecting keys to the keyboards and transmitting signals to the connected keyboard unit.

Our PCB base keyboards are made with high-quality materials that are usually connected to the inner surface of keyboards. Due to its advanced technological updates and mechanisms, it can be applied to multiple applications. Let’s look at its multiple types and features and how it is beneficial for use in certain applications.

We are providing multiple types of PCB and PCF-based keyboards with advanced features that give maximum performance in every unit. Here we have listed down some types:

• Mechanical Keyboards: In these keyboards, each keypad is attached with individual keypads or keys, which are attached with to two metal springs for pressing purposes. These PCB keypads are more durable compared to other keyboards, and multiple layers are attached to the inner surface for a spill-free structure. It is commonly used in gaming, programming and household uses.
• Membrane Keyboards: It has a thin and flexible membrane connected to the overall keyboard and has a space for smooth and perfect operation. These are available in both tactile and non-tactile membrane keyboards for efficient handling in multiple types of applications.
• Dome-Switched Membrane Keyboards: These are one printed rugged keyboards and are found in standard desktop models and point-of-sale systems. The dome-shaped switch is connected to each key, and when pressed, it connects to the circuit.
• Scissor-Switch Membrane Keyboards: These are sensitive keyboards usually found in laptops and have a scissor-like mechanism where all keypads are connected on a flat surface. The handling of these keyboards is comfortable and preferred for long-term work.

For increasing the more performance and additional information about our PCB Based Membrane Switch Keypad, we have mentioned a technical chart below: