Keithley 7709 6 × 8 Matrix Module

The Keithley 7709 is a plug-in matrix module for Keithley Series 700/7000 Switch Mainframes, providing 48 two-pole crosspoints in a 6 × 8 configuration. It enables dynamic signal routing and connection management in automated test environments, allowing multiple test points to connect to single measurement instruments. The module uses K4149 reed relays or equivalent, delivering low on-resistance and high off-isolation for signal integrity in semiconductor testing, product validation, and laboratory automation.

Technical Specifications

• Crosspoint configuration: 6 rows × 8 columns


• Total crosspoints: 48


• Pole configuration: Two-pole per crosspoint


• Switching type: General purpose matrix switching


• Relay type: K4149 reed relays or equivalent


• On-resistance: Tens to hundreds of milliohms (varies with relay type and signal path)


• Actuation time: Low millisecond range

Key Features

• Reed relay architecture ensures reliable low-signal switching with minimal attenuation


• High off-isolation prevents crosstalk between inactive crosspoints


• Low actuation time supports high-speed automated testing cycles


• Standard plug-in form factor for designated mainframe slots

Typical Applications

• Semiconductor device testing and characterization


• Multi-point product validation and functional testing


• Laboratory signal routing and connection management


• Complex test setups requiring flexible signal path control

Compatibility & Integration The 7709 module integrates into Keithley Series 700 and 7000 Switch Mainframes via standard plug-in slots. Row and column connections are provided through BNC or terminal block connectors depending on mainframe configuration. Users must verify mainframe compatibility and available power/control signals before installation.