Keithley 2657A-LIM-3 – Low Interconnect Module

The Keithley 2657A-LIM-3 Low Interconnect Module is a specialized interface accessory that connects the Keithley 2657A High Power System SourceMeter to external test setups for low-current measurement applications. It minimizes noise and leakage currents to preserve signal integrity during sensitive characterization of devices requiring high precision at nanoampere and picoampere levels.

Technical Specifications

• Low-current measurement capability optimized for nanoampere (nA) and picoampere (pA) ranges


• Integrated shielding to reduce electromagnetic interference (EMI) and radio frequency interference (RFI) pickup


• Guard connections to minimize surface leakage currents across insulators


• Minimal internal resistance contribution to overall test circuit


• Low-noise, shielded coaxial connectors for Source, Sense, and Guard connections to device under test (DUT)


• Binding posts for external test fixture and cable connections


• solid grounding provisions to establish stable reference potential and minimize ground loop noise

Key Features

• Direct mating interface with Keithley 2657A High Power System SourceMeter


• Low-leakage signal path architecture for ultra-low current measurements


• Compact module form factor designed for laboratory and production environments


• Durable construction suitable for secure mounting to the Keithley 2657A


• Guarded measurement architecture for enhanced accuracy

Typical Applications

• Semiconductor device characterization including isolation leakage and gate leakage measurements


• Sensor testing and evaluation


• Low-power component analysis

Compatibility & Integration This module integrates exclusively with the Keithley 2657A High Power System SourceMeter, providing the low-noise interconnect infrastructure required for measurements where signal fidelity and leakage minimization are critical.