Feature momentary contact, 4 pins, black round push button, Surface Mounted Devices mounting type, 6 x 6 x 4.3mm size, etc. Used in the fields of electronic products, household appliances and more. High precision mechanism design offers operation and long service life. Specifications: Descriptions: This miniature micro switch with momentary contact design, 4 pin, round black button. Micro Switch widely used in the fields of electronic product, computer mouse, instrument and meter, household appliance and more. High precision mechanism design offering operation and long life.