The EVQ-P4HB3B is a side-operational, middle-travel SPST light touch switch designed for edge mounting on a printed circuit board. It features a specific operating force of 2.5 N, a travel distance of 0.70 mm, and an extended operating life of 1,000,000 cycles. The switch is housed in a compact 6.2 mm x 2.55 mm package with a 3.5 mm height, providing a low profile of 1.35 mm from the PCB surface. Its robust design and reliable performance make it suitable for operation switches in portable electronics like digital cameras and audio players, as well as automotive applications such as keyless entry and car audio systems.