The JT1143JEM is a 3.5mm 4.3mm Rectangle button 10mA Brick nogging 6mm SPST 180gf@±50gf 5V SMD Tactile Switch ROHS manufactured by NAMAE. These switches feature self-cleaning contacts, low contact resistance, and high temperature resistance (-40°C to +105°C) to withstand harsh operating conditions. They are rated to last 1 million operations, with a voltage of 5V and a current of 10mA, and a rated force of 180gf@±50gf. The SMD Tactile Switches are RoHS compliant, making them suitable for use in a variety of electronic devices.