ST2851 Series Precision Impedance Analyzer

ST2851 series precision impedance analyzer is a new generation impedance test instrument by adopting the current international advanced automatic balance bridge principle. It is based on Windows10 operating system, which realizes a fully computerized operation interface, making the measurement more intelligent and easier.

ST2851 series impedance analyzer surpasses the 120MHz frequency bottleneck of similar foreign instruments, and solves the defect that it can only be analyzed but cannot be tested independently. At the same time, it adopts two interfaces of single test and analysis to make the test easier.

The fast test speed of 2.5ms and the impedance test range of up to 100MΩ can meet the measurement requirements of components and materials, especially for the measurement of low loss (D) capacitors and high quality factor (Q) inductors. The port configuration of the four-terminal pair can effectively eliminate the influence of electromagnetic coupling of the test line. Extends the lower limit of low-impedance testing capabilities tenfold over conventional five-terminal configurations.

Applications: Passive component / Semiconductor component / Dielectric material / Magnetic material / Semiconductor material / Liquid crystal cell

 

   Comparison with KEYSIGHT E4990A 

Key Features

Test frequency: 10Hz-130MHz

High precision: using automatic balance bridge technology, four-terminal pair test configuration

High stability and consistency

High speed: the fastest test speed up to 5ms

High resolution: 10.1-inch capacitive touch screen, resolution 1280*800

Three test methods: point test, list scan, and graph scan

1601 point multi-parameter list scanning function

4-channel graphic scanning function

High compatibility: support SCPI instruction set, compatible with KEYSIGHT E4990A, E4980A, E4980AL, HP4284A

Frequency Range

ST2851-015: 10Hz to 15MHz,

ST2851-030: 10Hz to 30MHz,

ST2851-050: 10Hz to 50MHz,

ST2851-080: 10Hz to 80MHz,

ST2851-130: 10Hz to 130MHz

Basic Accuracy

0.08%

AC Signal Source

Voltage: 5mVrms – 2Vrms

Current: 200μArms – 20mArms

DC Bias

Voltage: 0V – ±40V

Current: 0mA – ±100mA

Equivalent Circuit Analysis

3-element model: 4,

4-element model: 3

Sorting

10 levels of sorting in LCR mode; each curve in scan mode is sorted individually

Test Terminal Conf.

Four terminal pair

(Note: see more technical specifications in the ‘Resource’ – ‘Datasheet’)

Main Machine

Module No. Item Description
ST2851-015 Precision Impedance Analyzer Frequency range: 10Hz-15MHz, including short circuit, test fixture, 100Ω standard resistance, calibration kit, chip resistor
ST2851-030 Precision Impedance Analyzer Frequency range: 10Hz-30MHz, including short circuit, test fixture, 100Ω standard resistance, calibration kit, chip resistor
ST2851-050 Precision Impedance Analyzer Frequency range: 10Hz-50MHz, including short circuit, test fixture, 100Ω standard resistance, calibration kit, chip resistor
ST2851-080 Precision Impedance Analyzer Frequency range: 10Hz-80MHz, including short circuit, test fixture, 100Ω standard resistance, calibration kit, chip resistor
ST2851-130 Precision Impedance Analyzer Frequency range: 10Hz-130MHz, including short circuit, test fixture, 100Ω standard resistance, calibration kit, chip resistor

Options

Module No. Item Description
ST26007A Magnetic Ring Test Fixture DC-120MHz, maximum ±42V DC bias, applied to single-turn inductance test of small magnetic ring, customizable size
ST26008A SMD Component Test Fixture DC-120MHz, maximum ±42V DC bias, applied to SMD components, especially high-frequency small capacitor ≤3pF or small inductance ≤1uH, test frequency ≥100kHz
ST26009B SMD Component Test Fixture DC-15MHz, maximum ±42V DC bias, applied to SMD components
ST26108C Four-terminal SMD Test Fixture DC-40MHz, maximum ±42V DC bias, applied to SMD components, especially high-frequency small capacitor ≤3pF or small inductance ≤1uH, test frequency ≥100kHz
ST26062A Four-terminal Test Fixture DC-100kHz, maximum ±42V DC bias, applied to test thin film bulk DC_LINK capacitors for electric vehicles
ST26048 Four-terminal Test Fixture DC-13MHz, maximum ±42V DC bias, applied to in-Line axial and radial impedance components
ST26063 Four-terminal Test Fixture DC-100kHz, maximum ±42V DC bias, applied to test bolted capacitor and DC_LINK capacitors
ST26077 Dielectric Test Fixture DC-120MHz, DUT size: 10mm-56mm, DUT thickness: ≤10mm, applied to dielectric analysis of solid materials

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