Littelfuse Launches First Reflow-Compatible Illuminated Tactile Switch with SPDT & Long Travel
Littelfuse has announced the expansion of its K5V Series Illuminated Tactile Switch family with the release of new K5V4 models. These include the Gull Wing (GH) and 2.1 mm Pin-in-Paste (PIP) versions, which are compatible with reflow soldering. Built using a high-temperature PAR (polyacrylate) material with a 250°C thermal deformation threshold, the new K5V4 switches are ideally suited for manufacturers transitioning from wave to reflow soldering processes. By eliminating the need for silicone sleeves or special handling and enabling direct SMT assembly for the first time, they reduce production costs, support increased throughput, and improve end-product quality – all while maintaining durability and tactile performance.

