Agilent/Keysight N1428A

The Keysight N1428A is a component test fixture engineered for high-resistance measurements in conjunction with Keysight B2980A series femtoammeters and electrometers. It delivers accurate characterization of high-resistance devices up to 10 POhm through a shielded design and triaxial input terminal configuration that actively suppresses electrical noise and external interference. The fixture accommodates Surface-Mount Devices (SMDs), leaded components, and various other device types via two included component modules.

A built-in interlock circuIt has operator safety during high-voltage measurement operations.

Technical Specifications

• Measurement capability: up to 10 POhm


• Component support: SMD, leaded components, and various device types


• Input configuration: triaxial terminals


• Safety: built-in interlock circuit for high-voltage operation


• Included modules: two component modules for device holding

Key Features

• Shielded case construction minimizes electrical noise and external field coupling


• Triaxial input terminal architecture reduces measurement uncertainty in high-impedance applications


• Built-in interlock circuit ensures safe operation during elevated voltage measurements


• Support for multiple component form factors through included modular design

Typical Applications

• High-resistance characterization of insulators and dielectric materials


• Leakage current and surface resistance measurement of semiconductor devices


• High-impedance component validation in research and manufacturing environments

Compatibility & Integration The N1428A operates with Keysight B2985A and B2987A Electrometer/High Resistance Meter instruments. Connection to these meters requires the N1413A High Resistance Meter Fixture Adapter. The fixture is not a standalone assembly and must be integrated with compatible electrometers for measurement operation.