Siglent SSU5184A, 4‑Position SPDT Mechanical RF Switch, DC–18 GHz, TTL Control

The Siglent SSU5184A is a compact, high-performance mechanical RF switch featuring four independent single-pole, double-throw (SPDT) switches. It supports operation from DC up to 18 GHz with low insertion loss and excellent impedance matching. Control is provided via TTL, SCPI commands (over USB), and the EasySSU software interface. Ideal for automated test setups, it offers switching times under 15 ms and accommodates external TTL drive.

Key Features

• Four independent SPDT mechanical switches (common to two throws per channel)
• Frequency coverage from DC to 18 GHz
• TTL control interface with 12 V driving voltage and 1.25 A maximum current
• SCPI-controllable via USB and EasySSU software
• Very fast switching time: less than 15 ms
• Compact form factor enabling easy integration