Siglent SSU5181A, Mechanical SPDT RF Switch, DC–18 GHz

The Siglent SSU5181A is a compact mechanical RF switch offering a single-pole double-throw configuration ideal for high-frequency test setups. It switches between two signal paths using an integrated SPDT switch that supports DC to 18 GHz signals. The unit is controllable via USB and SCPI through EasySSU software and provides fast switching times under 15 ms. Designed for multi-port test environments, it features low insertion loss, excellent impedance matching, and intuitive remote control.

Key Features

• Operating bandwidth from DC to 18 GHz with precision RF performance.
• Single-pole, double-throw switch (SPDT) layout with a common port switching between two outputs.
• SMA female connectors ensure robust connections and 50 Ω integrity.
• Controlled digitally via TTL, USB, or SCPI commands using EasySSU software.
• Compact 19-inch rack-compatible chassis measuring approximately 153 × 62.4 × 137.5 mm.
• Includes USB cable, power adapter, and user manual for quick setup.