SKRP Compact TACT Switches Alps Alpine SKRP Compact TACT Switches™ provide high operating forces that satisfy the needs in car audio and navigation systems and various audio / communications devices. These switches offer a reliable, durable design, providing 10x the life expectancy while maintaining the same footprint. Alps Alpine SKRP TACT Switches feature a sharp feeling operation with a 500mΩ initial contact resistance, a -40°C to +90°C temperature range, and a 1.0N to 5.0N operating force range. Measuring 4.2mm x 3.2mm x 2.5mm, the compact SKRP switches produce minimal travel of 0.15mm or 0.2mm.