PTS645TL43LFS is a compact 6 mm tactile switch from the PTS645 Series, designed for momentary action switching applications. It features an SPST normally open contact arrangement with straight through-hole PC pin terminals, an actuation force of 130 grams, and a switch height of 4.3 mm from the PCB. The switch is rated for 50 mA at 12 V DC with a contact resistance of 100 mO maximum and offers a life expectancy of 100,000 operations. Operating temperature ranges from -20°C to 70°C, and the component is RoHS compliant. Common applications include consumer products, instrumentation, computer products, and industrial equipment where reliable tactile feedback is required.