What Are Ultra-Thin Keypads?

Aug 26, 2021

Silicone rubber keypad integrated with flexible printed circuit

Keypads are one of the most common types of device interfaces. As you may know, they consist of a pad with multiple buttons. Some keypads only feature numbers on their buttons, whereas others feature a combination of numbers, letters and/or symbols. While all keypads have buttons, though, some of them are thinner than others.

There are standard keypads, and there are ultra-thin keypads. Ultra-thin keypads live up to their namesake by featuring an exceptionally thin design. To learn more about ultra-thin keypads, including their benefits, keep reading.

Overview of Ultra-Thin Keypads

Ultra-thin keypads are button-based device interfaces that are designed to be thinner than standard keypads. The buttons may contain any combination of letters, numbers and symbols. With that said, ultra-thin keypads are exceptionally thin. They are thinner than standard keypads, making them ideal for many commercial applications.

How Ultra-Thin Keypads Are Made

You might be wondering how ultra-thin keypads are made. While there are different ways to produce them, polycarbonates (PC) injection is one of the most common methods. PC injection is a molding process. It leverages a mold and raw PC material to create objects, including ultra-thin keypads. With PC injection, the raw PC material is injected into the hollow cavity of a pre-shaped mold.

Benefits of Ultra-Thin Keypads

Ulta-thin keypads offer several benefits. Because they are typically made of PC — a type of thermoplastic — ultra-thin keypads are resistant to moisture. Moisture can’t penetrate through the PC material, thereby protecting the circuitry from moisture-related damage.

Ultra-thin keypads are also durable. PC material isn’t just water resistant; it’s strong and durable. As a result, ultra-thin keypads made of PC material last a long time. You don’t have to worry about them breaking or otherwise degrading. They’ll last a long time thanks to their PC construction.

Of course, one of the main benefits of ultra-thin keypads is their low-profile design. They feature a thinner, lower-profile design than that of standard keypads. With this design, they can accommodate more devices and other related interface applications.

You may discover that some ultra-thin keypads have backlighting. Backlighting is an optional feature that can be included in ultra-thin keypads. It’s designed to illuminate the keypad’s buttons from underneath. Not all ultra-thin keypads have backlighting. Nonetheless, if you’re planning to use an ultra-thin keypad in a dark or poorly lit environment, you may want to choose backlighting for it.

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