The 5511M1X is a momentary pushbutton switch from the 5500 series, featuring a large cap and no LED. It is rated for 300mA at 12 VDC and offers a high life expectancy of 500,000 cycles. Key electrical characteristics include a maximum contact resistance of 50mΩ, a minimum insulation resistance of 50 MΩ, and a dielectric strength exceeding 1,000 V rms at sea level. The switch requires a maximum actuation force of 255 grams and operates reliably in temperatures from -25°C to +65°C. Its durable construction with gold-plated contacts makes it ideal for applications in telecommunications, networking, computers, and instrumentation.