The Keysight U7108B is a single-pole, eight-throw (SP8T) electromechanical switch engineered for high-performance RF signal routing in automated test systems. Operating from DC to 20 GHz, it delivers highly repeatable switching with minimum 70 dB isolation from DC to 3 GHz and minimum 63 dB isolation at 26.5 GHz. The switch employs magnetic latching with opto-electronic indication and current interruption control, requiring a 24 VDC supply. Control via TTL/5V CMOS-compatible logic (optional) uses a 20 ms minimum pulse width. Terminated ports and superior VSWR characteristics ensure signal integrity across the operating band. The unit functions reliably across -25 °C to +55 °C operating temperature and suits demanding laboratory and enterprise test environments demanding long life and high reliability.
Technical Specifications
• Configuration: Single-Pole, Eight-Throw (SP8T)
• Frequency Range: DC to 20 GHz
• Isolation: Minimum 70 dB (DC to 3 GHz); minimum 63 dB at 26.5 GHz
• VSWR: Superior characteristics across operating band
• Supply Voltage: 24 VDC
• Control Logic: TTL/5V CMOS compatible (optional)
• Minimum Pulse Width: 20 ms
• Latch Type: Magnetic latching with opto-electronic indicator
• Operating Temperature: -25 °C to +55 °C
• Non-Operating Temperature: -55 °C to +85 °C
• Temperature Cycling: -55 °C to +85 °C, 10 cycles per MIL-STD
– Key Features
• Highly repeatable switching for consistent test results
• Terminated ports minimize reflections
• Drive current interrupted after RF path switches and latches
• Control interface via 24-pin ribbon cable (standard) or optional solder terminals
• Current interruption provides positive path confirmation
– Typical Applications
• Automated test and measurement systems
• Multi-DUT and multi-channel test configurations
• RF signal monitoring and routing
• Antenna selection in surveillance systems
– Compatibility & Integration
Designed for modular logic analyzer systems and automated test equipment requiring DC-to-20 GHz signal routing with deterministic control and long operational life.
