The TS-1009S-05026 tactile switches SMD with RoHS certification are made by XUNPU. These switches measure 4.5x4.5x5.0mm and are made in a Surface Mount Device (SMD) form for integration and usage into electronic systems. These tactile switches follow a specific ratings criteria, with a Voltage of 50 VAC, a Rated Load of 200mA, a Rated Power of 0.5W, and a Life of 100,000 cycles of operation. They are also RoHS compliant, indicating that they meet the necessary standards for lead, cadmium, and other hazardous substances.