The 131-3801-811 is an SMB plug dummy load designed to terminate RF circuits with a 50 ohm impedance. It operates across a frequency range of 0–1 GHz and features gold-plated contacts for superior corrosion resistance and reliable electrical performance. The connector body is constructed from brass with PTFE fluorocarbon insulators, and the center contact is made from beryllium copper with gold plating to ensure low contact resistance and durability. The dummy load is rated for 0.5 watt at +25°C, derated to 0.25 watt at +125°C, and operates reliably over a temperature range of -65°C to +125°C. This component is commonly used in RF test equipment, signal generators, and measurement systems where impedance matching and signal termination are required.