The Keithley 7169A is a 20-channel Form C switch card engineered for seamless integration into the Keithley Model 7002 mainframe. This module delivers automated signal path switching and routing control, enabling flexible test configuration across complex measurement systems. Each of the 20 independent channels employs a single-pole, double-throw (SPDT) isolated relay, supporting switching currents up to 0.5 A RMS and carry currents to 1 A RMS with peak voltages of 500 V. On-card buses and jumper-selectable configurations allow dynamic reconfiguration from individual switches to multiplexer operation, accommodating diverse routing topologies without hardware changes.
## Technical Specifications
• **Channel Count:** 20 independent Form C relays per card
• **Contact Type:** SPDT (Single Pole Double Throw)
• **Maximum Signal Levels:** 0.5 A RMS switched; 1 A RMS carry; 10 W resistive load; 500 V peak
• **Contact Life:** >10⁸ closures (cold switching); >10⁷ closures (at maximum signal levels)
• **Contact Resistance:** <2 Ω to rated life
• **Contact Potential:** <35 µV (C to NO or NC)
• **Actuation Time:** 10⁹ Ω, 10⁹ Ω, 10⁸ cold-switching contact life supports extended test cycles
## Compatibility & Integration
The 7169A operates exclusively within the Keithley Model 7002 mainframe. Compatible accessories include the Model 7169-MTC-3 mass-terminated cable assembly (3 m) and Model 7169-KIT connector components for custom cable builds. The card conforms to EU Directive 89/336/EEC (EMC) and EU Directive 73/23/EEC (safety; meets EN61010-1/IEC 1010).
