Product Overview
The Keysight U9428A/002/201/301 Solid State FET Switch is a precision SP8T switch engineered for high-frequency signal routing in demanding test and measurement environments. Operating from 300 kHz to 26.5 GHz, this USB-controlled switch delivers exceptional isolation, low insertion loss, and nanosecond switching speeds, making it a versatile solution for automated test systems, signal routing, and antenna switching applications.
Key Features & Highlights
- Wide Frequency Range: 300 kHz to 26.5 GHz covers a broad spectrum of RF and microwave applications.
- SP8T Configuration: 8-port switch provides flexible signal routing for complex test setups.
- High Isolation: >60 dB typical isolation ensures signal integrity and minimizes crosstalk.
- Low Insertion Loss: <1.5 dB typical insertion loss preserves signal strength and accuracy.
- Fast Switching Speed: <100 ns switching time enables rapid test sequences and increased throughput.
- USB Control Interface: Simplifies integration with modern test systems and allows easy remote operation.
- Compact Design: 2.5″ x 2.5″ x 0.5″ footprint fits into space-constrained racks and enclosures.
Applications
This switch is ideal for automated test equipment (ATE), signal routing in production test, antenna switching, and any application requiring reliable, high-speed RF switching. Its USB interface and compact size make it particularly well-suited for benchtop setups and portable test solutions.





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