Y78B24110FP is a microminiature SMT top-actuated tactile switch from the KMR 2 Series designed for momentary action applications with SPST (single pole, single throw) normally open contact arrangement and gullwing-type SMT terminals. The switch features ultra-low current capabilities, excellent tactile feel with =30% tactile feedback, and is available in multiple actuation force options ranging from 1.2 N to 4.0 N with operating life cycles from 100,000 to 300,000 cycles depending on the variant. Electrical specifications include maximum power rating of 1 VA (silver contact) or 0.2 VA (gold contact), maximum voltage of 32 VDC, and maximum current of 50 mA (silver) or 10 mA (gold), with a minimum operating current of 1 mA. This long-life version switch is widely used in automotive, cellular phones, industrial electronics, and medical equipment applications where reliable tactile feedback and compact form factor are essential.