The Keysight 8768K is a single-pole, five-throw (SP5T) coaxial switch engineered for multiport RF routing from DC to 26.5 GHz. Built on proven technology from the Keysight 849X and 49X attenuator families, this switch delivers exceptional reliability and repeatability for automated test equipment. It handles over 5 million switching cycles with typical repeatability of 0.01 dB to 18 GHz and 0.05 dB to 26.5 GHz, guaranteed to 0.03 dB across the band.
Technical Specifications
• Frequency Range: DC to 26.5 GHz (Option 876xK-002: DC to 18 GHz)
• Configuration: Single-Pole, Five-Throw (SP5T)
• Switching Time: 5 million switching cycles typical
• Repeatability: 0.01 dB to 18 GHz; 0.05 dB to 26.5 GHz; guaranteed 0.03 dB
• Isolation: Frequency and port-dependent; at 8 GHz: 30 dB (worst-case ports 1–2), 45 dB (port 4), 65 dB (port 5)
• Shock Resistance: Solenoid armatures withstand >10 g shock
• Solenoid Voltage: 24 VDC (standard); 5 VDC or 15 VDC (optional)
• Switching Type: Break-before-make
• Control: Self-interrupting contacts; current interrupt and position indication; GPIB compatible
• Connectors: SMA
• Configuration: Unterminated
– Key Features
• Compact, ruggedized package for benchtop and integrated ATE deployment
• Fast switching under 20 ms enables high-speed test sequences
• Self-interrupting contacts reduce driver complexity and power draw
• Exceptional port-to-port isolation across the full frequency range
• Multiple solenoid voltage options for flexible system integration
• Proven reliability with permanent magnet armature design
– Typical Applications
• Automated RF test systems requiring multiport signal routing
• Component characterization and S-parameter measurement
• High-frequency validation and production testing
– Compatibility & Integration
Designed for GPIB-controlled ATE environments. Compatible with Keysight 11713A and 87130A attenuator/switch drivers for seamless command and control integration.

















