The TS-1009-AR04316 with Tactile Switches Through Hole is a 4.5x4.5x4.3mm switch, manufactured by XUNPU. It is a RoHS compliant tactile switch, designed for through hole mounting, with a contact rating of 0.4VA, 2A and 40Vdc. It is a surface mount pushbutton switch, and includes an actuator or metal dome for actuation. Its non-tapered design allows for a better tactile feel, and the metal dome provides a more firm, tactile click. This switch is ideal for use in PCB boards that have space limitations, with its low profile design.