The Agilent/Keysight 8766K is a single-pole, triple-throw (SP3T) multiport coaxial switch engineered for signal routing across DC to 26.5 GHz in RF and microwave test environments. Built on proven solenoid-actuated architecture with permanent magnet retention, it delivers switching speeds under 20 ms with contact settling included. The design minimizes insertion loss and maintains excellent repeatability—typically 0.03 dB overall, with frequency-dependent performance of 0.01 dB to 18 GHz and 0.05 dB to 26.5 GHz.
Technical Specifications
• Frequency Range: DC to 26.5 GHz
• Switch Configuration: Single Pole, Triple Throw (SP3T), multiport coaxial
• Switching Time: Less than 20 ms (contact settling included)
• Operating Life: Minimum 5 million cycles; typical 5 million cycles
• Repeatability: 0.03 dB typical; 0.01 dB to 18 GHz and 0.05 dB to 26.5 GHz
• Isolation: Frequency and port dependent; related 8766/7/8/9K models achieve greater than 85 dB at 26.5 GHz
• Solenoid Actuation: Permanent magnet retention; withstands shock exceeding 10 g’s
• Contact Design: Self-interrupting contacts reduce power consumption and simplify driver requirements
– Key Features
• Compact, rugged construction derived from Agilent/Keysight 849X step attenuator technology
• Multiple solenoid voltage options: 24 V standard; 5 V or 15 V available
• Self-interrupting contacts with current interrupt and position indication capability
• GPIB-compatible control for automated test equipment (ATE) integration
• TTL/5 V CMOS compatible logic options on related models
– Typical Applications
• Automated test equipment (ATE) for RF and microwave signal routing
• High-frequency measurement and characterization systems
• Multi-port signal selection in laboratory and production environments
– Compatibility & Integration
Drive voltage flexibility supports 24 V standard operation with optional 5 V or 15 V configurations. GPIB interface enables straightforward integration into ATE systems. Self-interrupting contact architecture simplifies external driver design while minimizing standby power draw.

















