TS-KG88C-ART25F with NO 2.9mm 2.5mm SMDSplicing Black 50mA Round Button Brick nogging 4mm SPST 100MO 12V 250gf@±50gf SMD Tactile Switches ROHS is an electronic component manufactured by Hanbo Electronic. It is a push button switch used to turn devices on and off without having to physically move something. This button switch is defined by its size which is 2.9mm by 2.5mm, its color which is black, its power rating which is 50mA, its shape which is round, its action type which is SPST (Single Pole Single Throw), its electrical value which is 100MO, its operating voltage which is 12V, its breaking strength which is 250gf @ ±50gf, and its mounting type which is SMD. Additionally, this component is ROHS compliant, meaning it is free from hazardous substances which are commonly found in electronic parts.