The Keysight U9424C is a Single Pole Four Throw (SP4T) FET solid-state switch engineered for high-frequency signal routing in RF and microwave test systems. Operating from 300 kHz to 54 GHz, it delivers microsecond switching speed with isolation exceeding 100 dB at 9 GHz and maintaining 70 dB across the upper frequency range. Video leakage remains below 50 mVpp, protecting sensitive measurement circuits. The device integrates via USB control and supports multiport connectivity for PXIe and USB VNA platforms, with 1.85 mm connectors rated for 54 GHz operation.
Technical Specifications
• Frequency Range: 300 kHz to 54 GHz
• Configuration: SP4T (Single Pole Four Throw)
• Switching Speed: Microseconds
• Isolation: Up to 100 dB at 9 GHz; 70 dB to 54 GHz
• Video Leakage: <50 mVpp
• Connector Type: 1.85 mm
• Control Interface: USB
Return Loss (OFF Port):
• 300 kHz–8 GHz: 16.3 dB (VSWR 1.4)
• 8–13 GHz: 12.5 dB (VSWR 1.6)
• 13–35 GHz: 10.6 dB (VSWR 1.8)
• 35–39 GHz: 12.8 dB (VSWR 1.6)
• 39–43 GHz: 8.7 dB (VSWR 2.2)
• 43–50 GHz: 5.1 dB (VSWR 3.5)
• 50–54 GHz: 6.8 dB (VSWR 2.7)
– Key Features
• Low video leakage protects downstream components in signal chains
• High isolation maintains port-to-port signal separation across DC to mm-wave bands
• Dual configuration options: solder terminal (64.5 × 91 × 18 mm) or USB/multiport variant (64.5 × 105.4 × 22.5 mm)
• Rated for 0.21 Grms operating vibration and mechanical shock up to 1.6 m/s during handling
• Operating humidity to 95% RH at 40°C (non-condensing)
– Typical Applications
• RF and microwave instrumentation
• Communication and radar system testing
• Switch matrix assemblies
• Multi-channel signal routing in automated test equipment
– Compatibility & Integration
USB and multiport configuration options enable direct integration with PXIe and USB VNA platforms, eliminating external control interfaces in modular test architectures.
