The 8533MCQE2 is a subminiature SPST pushbutton switch from the 8500 series, featuring an On-Momentary (normally closed) function. It is designed for a contact rating of 1A at 120V AC or 28V DC and offers a long electrical life of 250,000 actuations at full load. This model has a typical total plunger travel of 2.03 mm and an actuation force of 456 g. Its reliable design and compact form factor make it well-suited for various applications, including detection circuits, telecommunications equipment, and computer peripherals.