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E4990A Impedance Analyzer, 20 Hz to 10/20/30/50/120 MHz

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Typically Configured Price US$ 21,910

Typical Configuration

E4990A Impedance Analyzer

  • R-51B-001-Z Return to Keysight Warranty - 3 years
  • E4990A-019 Standard Data Storage
  • E4990A-010 20 Hz to 10 MHz

Typically Configured Price US$ 21,910


Prices for: United States

* Prices are subject to change without notice. Prices shown are Manufacturer's Suggested Retail Prices (MSRP). Prices shown are exclusive of taxes.

Key Features & Specifications

  • Five frequency options; 20 Hz to 10/20/30/50/120 MHz, upgradable
  • ±0.08% (typical ±0.045%) basic impedance measurement accuracy
  • 25 mΩ to 40 MΩ wide impedance measurement range (10% measurement accuracy range)
  • Measurement parameters: |Z|, |Y|, θ, R, X, G, B, L, C, D, Q, Complex Z, Complex Y, Vac, Iac, Vdc, Idc
  • Built-in DC bias range: 0 V to ±40 V, 0 A to ±100 mA
  • Enhanced measurement speed option (option 001. For 10M/20M/30M/50M options only)
  • 4-channel & 4-trace on 10.4 inch color LCD with touch screen
  • Data analysis function: Equivalent circuit analysis, limit line test


The E4990A Impedance Analyzer has a frequency range of 20 Hz to 120 MHz. The E4990A provides an industry best 0.045% (typical) basic accuracy over a wide impedance range, with a 40 V built-in DC bias source. The equivalent circuit analysis function supports seven different multi-parameter models and helps you to simulate your own equivalent parameter values of components.

Five frequency options (20 Hz to 10/20/30/50/120 MHz) and frequency upgrades allow you to choose the most appropriate option with the latest amount of investment.

With the option 001, enhanced measurement speed option, the low-frequency (10M/20M/30M/50M) models of the E4990A are as fast as the flagship 120-MHz E4990A model. It’s suitable to reduce overall cost-of -test for accurate evaluation like resonators or inductors or incoming inspection where many points per device or many DUTs measurements are required.

The E4990A supports a wide variety of test accessories that designed to make measurements simple and reliable.

Whether you are in R&D, QA, or inspection, the E4990A is an ideal solution for characterizing and evaluating electronic components, semiconductor devices and materials.

Application Example:

  • Passive components: Impedance measurement of capacitors, inductors, ferrite beads, resistors, transformers, or crystal/ceramic resonators.
  • Semiconductor components: C-V characteristics analysis of varactor diodes. Impedance evaluation of diodes, transistors, amplifiers, or MEMS.
  • Other components: Impedance evaluation of components on printed circuit boards.
  • Dielectric material: Permittivity and loss tangent evaluation of plastics, ceramics, and printed circuit boards.
  • Magnetic material: Permeability and loss tangent evaluation of ferrite, amorphous.