The TS-1090S-AR01826 is a tactile switch manufactured by XUNPU. It is a SPST (Single Pole Single Throw) switch with no SMD (Surface Mount Device) splicing. It is rated at 50mA, with a 3.5mm size, 100MO resistance, 100000 cycles rating, and a 260gf@±50gf actuation force. It can operate at up to 12V, has a 3mm contact gap, and is designed for temperatures ranging from -30? to +80?. The body of the switch is black, round button type, with a 1.8mm nogging. It is RoHS compliant.