# E4991B Agilent Impedance Analyzer Used

**Additional Features:**

-   Three frequency options: 1 MHz to 500 MHz/1 GHz/3 GHz, upgradable
-   ±0.65% basic accuracy and 120 mΩ to 52 kΩ impedance range (10% measurement accuracy range)
-   Measurement parameters: |Z|, |Y|, θ, R, X, G, B, L, C, D, Q, |Γ|, Γx, Γy, θΓ, VAC, Iac, VDC1, Idc1 (1. Option 001 is required)
-   Built-in DC bias (Option 001): 0 V to ±40 V, 0 A to ±100 mA
-   4-chnannel & 4-trace on 10.4 inch color LCD with touch screen
-   Data analysis function: Equivalent circuit analysis, limit line test

The Keysight Agilent E4991B Impedance Analyzer has a frequency range of 1 MHz to 3 GHz. The Keysight Agilent E4991B provides 0.65% basic accuracy over a wide impedance range with a 40 V built-in DC bias source (Option 001). The equivalent circuit analysis function supports seven different multi-parameter models and helps you to simulate your own equivalent parameter values of components.

## Details

- **Price:** 0.0 USD
- **Vendor:** Agilent
- **Type:** Imp Ana
- **Tags:** Agilent, Agilent Keysight, Analyzers, Impedance, Manufacturers, product_manual_group_1, Product_used

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 0.00 USD | In stock |

## Images

- E4991B Agilent Impedance Analyzer Used

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> Source: [ValueTronics](https://valuetronics.com/products/e4991b-agilent-impedance-analyzer-used)
> Updated: 2026-05-21