Alcoswitch - Te Connectivity 1571300-2.
TACTILE SWITCH, SPST, 0.05A, 24V, SMD; Product Range:FSMRAJSA Series; Actuator Orientation:Side Actuated; Switch Mounting:Surface Mount; Actuator Style:Round Button; Actuating Force:130gf; Contact Rating:50mA at 24VDC; IP Rating:IP67