STB8840 Series Precision LCR Meter

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STB8840 Series Precision LCR Meter

Overview Specifications Ordering Resources

STB8840 series precision LCR meter innovatively adopts a new generation of technologies such as dual CPU architecture, Linux bottom layer, 10.1-inch capacitive touch screen, built-in instruction which effectively solves the defects of slow LCR test, single display and complicated operation in the past.
The measurement frequency of SH2840 series is from 20Hz-500kHz/2MHz, which makes up for the shortcoming of lack of high-performance bridge in the frequency range of 500kHz.
STB8840 series LCR meter adopts four-parameter display, all settings, monitoring, sorting parameters, status, etc. can be displayed on the same screen, avoiding the cumbersome operation of frequent switching.

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

** Standard Lead Time: within 4 weeks **

Key Features

Test frequency: 20Hz-500kHz / 2MHz

High stability and consistency: 14 range configurations

High speed: dual CPU architecture, measurement speed up to 1000 times/s

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

Four-parameter measurement

201 point multi-parameter list scanning function

Graphic scanning function, 4 trajectories can be selected arbitrarily, support 1/2/4 split screen

Sorting function: 10 levels of sorting in LCR mode

10.1 inch capacitive touch screen, high resolution 1280*800

Support SCPI/MODBUS instruction set, compatible with KEYSIGHT E4980A, E4980AL, HP4284A

A. 10.1-inch Large Screen: Four Measurement Parameters for Unobstructed Visibility of Every Detail
Featuring a 10.1-inch touchscreen with a resolution of 1280×800, a Linux operating system, and a bilingual Chinese/English user interface—along with support for keyboard, mouse, and LAN connectivity—this device delivers unparalleled operational convenience.
A key advantage of the large screen is its ability to display four measurement parameters—along with sorting parameters, sorting results, and function selections—all on a single screen without appearing cluttered or overcrowded. Furthermore, all four measurement parameters can be displayed simultaneously and are fully customizable.
■ Passive Components:
Evaluation of impedance parameters and performance analysis for capacitors, inductors, magnetic cores, resistors, piezoelectric devices, transformers, chip components, network elements, etc.
■ Semiconductor Components:
Testing and analysis of parasitic parameters in LED driver ICs; C-VDC characteristics of variable-capacitance diodes; analysis of parasitic parameters in transistors or integrated circuits.
■ Other Components:
Impedance evaluation for printed circuit boards (PCBs), relays, switches, cables, batteries, etc.
■ Dielectric Materials:
Evaluation of dielectric constant and loss angle for plastics, ceramics, and other materials.
■ Magnetic Materials:
Evaluation of permeability and loss angle for ferrites, amorphous materials, and other magnetic materials.
■ Semiconductor Materials:
Dielectric constant, conductivity, and C-V characteristics of semiconductor materials. Liquid Crystal Materials: Dielectric constant, elastic constants, and C-V characteristics of liquid crystal cells.
■ Various Sensors:
Electronic skin, galvanometer-based image filter array sensors.

Fixture
Frequency Range	STB8840A: 20Hz – 500kHz STB8840B: 20Hz – 2MHz
Basic Accuracy	0.05%
AC Signal Source	Voltage: 5mVrms – 20Vrms Current: 50μArms – 100mArms
DC Bias	Voltage: 0V – ±40V Current: 0mA – ±100mA Bias current source: 0mA – 100mA
DCR Test	Voltage: 100mV – 20V Current: 0mA – 100mA
	(Note: see more technical specifications in the ‘Resource’ – ‘Datasheet’)

Main Machine

Module No.	Item	Description
STB8840A	Precision LCR Meter	Frequency range: 20Hz to 500kHz, including short circuit, fixture and Kelvin test lead with box four-terminal insulation & lock
STB8840B	Precision LCR Meter	Frequency range: 20Hz to 2MHz, including short circuit, fixture and Kelvin test lead with box four-terminal insulation & lock

Options

Module No.	Item	Description
SBF0007A	Magnetic Ring Test Fixture	DC-120MHz, maximum ±42V DC bias, applied to single-turn inductance test of small magnetic ring, customizable size
SBF0008A	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
SBF0009B	SMD Component Test Fixture	DC-15MHz, maximum ±42V DC bias, applied to SMD components
SBF1108C	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
SBF0047	Four-terminal Test Fixture	DC-120MHz, maximum ±42V DC bias, applied to impedance testing of wire-like devices, with shielded ground terminal
SBF0048	Four-terminal Test Fixture	DC-13MHz, maximum ±42V DC bias, applied to in-Line axial and radial impedance components
SBF0063	Four-terminal Test Fixture	DC-100kHz, maximum ±42V DC bias, applied to test bolted capacitor and DC_LINK capacitors
SBF0062A	Four-terminal Test Fixture	DC-100kHz, maximum ±42V DC bias, applied to test thin film bulk DC_LINK capacitors for electric vehicles
SBF0077	Dielectric Test Fixture	DC-120MHz, DUT size: 10mm-56mm, DUT thickness: ≤10mm, applied to dielectric analysis of solid materials