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Keypad switches are human interface modules with a button switch matrix for direct user input to a CPU, microcontroller or keypad controller and may include a display for user information and instruction. Keypads are selected by the column and row matrix, number of keys, legend, dimension and mounting type. Output types include CAN Bus, matrix, independent switch contact (parallel), onboard controller output, USB and Weigand.

Learn what a battery BMS does, how protection differs from charging, and which pack specifications to check when sourcing BMS components through ChipApex.
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Date: May 13, 2026 The global memory industry is facing an unprecedented supply crunch in legacy MLC NAND Flash. Leading manufacturers including Samsung Electronics…
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What Is NAND Flash? A Practical Guide for Engineers & Procurement Teams In today’s data-driven world—from smartphones and SSDs to industrial IoT devices—NAND flash…
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Select a DC-DC converter by input range, topology, isolation and temperature. Compare ripple, efficiency and load limits before choosing a component.
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Selecting the right microcontroller (MCU) isn’t just about specs—it’s about balancing performance, power, cost, and supply chain reliability. As an engineer, you’ve probably faced…
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Recently, the global electronic components market has been constantly evolving, and different regions and enterprises have witnessed new moves in aspects such as technological…
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In the world of electronics, memory components play a critical role in system performance—and DRAM (Dynamic Random-Access Memory) is one of the most widely…
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Find out when a bare shock switch needs a pull resistor, when an MCU internal pull-up is enough, and why sensor modules and piezo…
Read MoreMay 8, 2026 – Eindhoven, Netherlands NXP Semiconductors (NXPI), a global leader in automotive and industrial semiconductor solutions, has officially notified its worldwide channel…
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In the world of embedded electronics, getting a device to “think” is only half the battle. The other half is getting it to communicate…
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Understand how oscillators generate timing signals, how they differ from crystals, and which frequency, output and stability specs matter when choosing one.
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Compare thermistors, RTDs, thermocouples and temperature ICs. Learn how range, accuracy, response, interfaces and mounting affect component selection.
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