The Keysight N1810TL is a terminated single-pole double-throw (SPDT) electromechanical coaxial switch engineered for precise RF and microwave signal routing across DC to 67 GHz. The 50 Ω impedance design incorporates a 50 Ω terminated unused port, delivering excellent port matching and minimal signal degradation. Built on a latching mechanism with permanent magnets, this switch achieves 15 millisecond switching speed and supports operating lifespans up to 10 million cycles typical, with 5 million cycles guaranteed.
Technical Specifications
• Frequency Range: DC to 67 GHz (configurations available for DC to 4, 20, 26.5, 40, 50, or 67 GHz)
• Impedance: 50 Ω
• Insertion Loss: <0.27 dB at 4 GHz; <0.80 dB at 26.5 GHz; <1.12 dB at 67 GHz
• Insertion Loss Repeatability: 0.03 dB to 1 million cycles; 0.1 dB to 2 million cycles; 120 dB at 4 GHz; 70 dB at 26.5 GHz and 67 GHz; >95 dB at 2 GHz
• Standing Wave Ratio (SWR): <1.10 at 4 GHz; <1.60 at 26.5 GHz; <1.90 at 67 GHz
• Switching Speed: Typically 15 milliseconds
• Coil Voltage Options: 5 V DC (300 mA), 15 V DC (125 mA), or 24 V DC (75 mA)
• Drive Logic: Standard or TTL/5 V CMOS compatible
– Key Features
• Latching mechanism with automatic drive current disconnect after full engagement
• Optional position indicators
• Built-in current interrupt functionality
• Female SMA, 2.92 mm, 2.4 mm, or 1.85 mm connector options
• D-subminiature 9-pin or solder lug terminal configurations
– Typical Applications
• Automated RF and microwave testing systems
• Signal monitoring and routing in communication networks
• Precision measurement setups requiring low insertion loss and high isolation
– Compatibility & Integration
The N1810TL supports standard and TTL/5 V CMOS-compatible drive logic, accommodating diverse system architectures. Multiple coil voltage ratings and connector options enable flexible integration into existing test benches and automated measurement platforms.
