Siglent SSU5261A, RF Mechanical SPDT Switch, DC–26.5 GHz

The Siglent SSU5261A is a precision RF mechanical SPDT (single-pole, double-throw) switch designed for RF and microwave test systems. It supports a wide frequency range from DC up to 26.5 GHz with low insertion loss and excellent impedance matching. Controlled via USB and SCPI commands, it can be integrated into automated setups using EasySSU or VISA software. Compact and rugged, it features fast switching (<20 ms), TTL control, and SMA female RF connectors. The switch is powered via a 12 V DC supply.

Key Features

• Wideband coverage from DC to 26.5 GHz, suitable for both RF and microwave applications.
• Single SPDT switch: one common port selectable between two outputs.
• Employs standard SMA female connectors for reliable 50 Ω connections.
• Remote control via USB and SCPI protocols, fully compatible with Siglent’s EasySSU software.
• Compact, rack-ready form factor (W × H × D ≈ 153 × 62.4 × 137.5 mm).
• Includes USB cable, power adapter, and quick-start documentation for immediate deployment.