The tactile switch in question is a versatile surface-mount technology (SMT) component with multiple outline dimensions, commonly referred to as a 3.53.0mm, 3.53.2mm, or 4.6*2.8mm tact switch. Its compact size makes it an ideal choice for space-constrained applications, such as electronic devices, automotive systems, and industrial controls.

This switch features Gull Wing leads, which offer a secure and reliable connection to the PCB. The actuator height off the PCB is adjustable, with options of 1.75mm, 1.8mm, and 2.5mm, providing flexibility to meet various design requirements and user preferences. This makes it suitable for different applications and user interfaces that require precise and consistent tactile feedback.

One of the notable advantages of this tactile switch is its compatibility with popular switch models, including C&K’s KMR421 series (such as KMR421NG ULC LFS, KMR421G LFS, KMR421G ULC LFS, and KMR421NG LFS) and Alps Alpine’s SKTH series (SKTHBAE010, SKTHACE010, SKTHAEE010, and SKTHAHE010). This makes it an excellent alternative for designers looking to upgrade or replace existing components in their products.

Overall, this tactile switch combines compact size, versatility, and compatibility with established switch models, making it a valuable addition to any electronic design. Its reliable performance and precise tactile feedback ensure a satisfying user experience, making it an ideal choice for a wide range of applications.