The Keithley 7066 is a 10-channel isolated switch card engineered for non-multiplexed switching applications in the Keithley 7001 and 7002 switch mainframes. Each channel incorporates 2-pole Form A relays with jumper-configurable contact arrangements (Form B or Form C), enabling flexible signal routing and external circuit control without multiplexing constraints.
Technical Specifications
Switching Performance
• 10 independent, isolated channels
• 2-pole Form A relays (user-configurable to Form B or Form C)
• Actuation time: 10⁸ closures (cold switching); >10⁵ closures at maximum ratings
Electrical Characteristics
• Maximum signal level: 250 V DC or RMS, 350 V peak; 2 A DC or RMS; 60 W DC or RMS
• Contact potential: <30 µV per contact pair (input to output with copper leads)
• Contact resistance: <0.1 Ω initial; 10⁹ Ω, 10⁹ Ω (10⁹ Ω (<150 pF)
• Common mode voltage: 350 V peak
• Relay drive current: 80 mA per relay typical
Connector & Wiring
• Quick disconnect block per channel
• Screw terminals accept #14–#26 AWG wire
– Key Features
• Form A (NO) configuration shipped; jumper-selectable to Form B or Form C
• Isolated channels eliminate crosstalk and coupling effects
• Low contact potential and resistance ideal for precision signal switching
• Extended relay life under cold-switching conditions
• Compact form factor: 32 mm H × 114 mm W × 272 mm L; 0.28 kg
– Typical Applications
• Power line switching and control
• External circuit and device switching where isolation and independence are critical
• Signal routing in test and measurement systems
• Applications requiring Form C changeover or Form B capability via jumper configuration
– Compatibility & Integration
The 7066 card is designed as a plug-in module for Keithley 7001 and 7002 Switch Mainframes, integrating into multi-card switch systems for expanded channel density and application flexibility.
