The Keysight 16494A is a low-leakage triaxial cable engineered for precision measurement of currents down to the sub-fA level. Its triaxial architecture—featuring force, guard, and shield conductors—minimizes current leakage and enables repeatable results in high-sensitivity measurement scenarios. The cable serves as a critical accessory for impedance analysis, component characterization, and applications demanding sub-femtoampere resolution.
Technical Specifications
• Maximum DC voltage: 200V
• Maximum DC current: 1A
• Conductor configuration: Three conductors (force, guard, shield)
• Measurement range: Sub-fA to 1A DC
• Connector type: Triaxial connectors
Available lengths include 0.4 m, 0.8 m, 1.5 m, 3.0 m, and 4.0 m.
– Key Features
• Triaxial design minimizes leakage current in ultra-low-current applications
• Three-conductor architecture isolates measurement signal from external noise
• Rated for 200V DC and 1A DC maximum operation
• Environmental durability engineered for harsh measurement conditions
• Multiple length options accommodate diverse test fixture configurations
– Typical Applications
• Impedance analysis and characterization
• Semiconductor device testing and parametric evaluation
• High-resistance measurements
• Low-current source-measure applications
• Quality assurance and research environments requiring sub-fA sensitivity
– Compatibility & Integration
The 16494A integrates with Keysight’s B2900 Precision Instrument Family, semiconductor analyzers, high-resistance meters, and Source Measure Units (SMUs). It is designed specifically for use with impedance analyzers and associated test fixtures where leakage current rejection is critical to measurement accuracy.
