ST1819C is an RF load (dummy load) termination designed to absorb incident energy from unused RF ports with minimal reflection. Operating from DC to 18 GHz, it handles up to 1 Watt continuous wave (CW) power and 250 Watts peak power (1 µs pulse, 1% duty cycle), with a maximum VSWR of 1.2:1 across the frequency range. The termination features a 50 Ohm impedance, SMA male coaxial interface with gold-plated brass contacts, and a passivated stainless steel body with beaded chain attachment. This component is widely used in RF and microwave systems including wireless communications, satellite systems, radar, and test and measurement applications to prevent signal reflection and ensure signal integrity.