Product Parameter: Cut out hole: ϕ19mm Brand: TOPSHALL Model series: MPB19-R2P-FN-B7 Safety approval: CE and ROHS Rating: 3A/250V Button and case: Brass/ SUS black etc Button function: Momentary Base: PBT Button shape: Flat/high flat Contact: Silver alloy Button color: Could customize Mechanical life: 500000 cycles Button led type: None Dielectric life: 200000 cycles Button led color: None Operate temperature: ˗20-85℃ Led lamp volt: None Nut Torque: 5-14Nm Lamp life: None Operating stroke: 2.0mm±0.3mm Switch terminals: 2pins with 1NO Contact resistance: 50mΩ Max Protection level: IP67 IK09 Insulation resistance: 1000mΩ Max Operating pressure: 500gf±100gf Dielectric strength: 2000VAC 1Am of 1 minute   Product Dimension:   Packing&Shipping: Packaging:Standard exported carton. Delivery:DHL,UPS,TNT etc or as your request. Advantages: 1.About 10years experience for switches research and development to apply to demands of our old and new customers.and officially found in 2012. 2.A great professional design group in factory and produce exact products for smallest and shortest size. 3.Free samples for few products. 4.Solve problems on time for you.fast delivery and competitive price.
link:http://www.topshall-switch.com/metalpushbutton-switches/19mm-mounting-hole-metal-switches/mpb19-r2p-fn-b7-19mm-momentary-flat-button.html