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MICROTEST

LCR Meter 6621 Series 1/3/5/10/20/30MHz

The MICROTEST 6621 Series LCR Meter delivers high-precision impedance measurement across a wide frequency range from 10 Hz to 1/3/5/10/20/30 MHz with a basic accuracy of ±0.05%. Featuring ultra-fast test speeds under 3 ms, automatic level control, built-in ±12 V DC bias (optional), and versatile connectivity options, it is ideal for R&D labs, component testing, and automated production environments..

  • Detail
  • Special Features
  • Specification

The MICROTEST 6621 Series LCR Meter is engineered for high-precision impedance characterization of components and materials over a 10 Hz to 30 MHz frequency range. Available in six model variants, it allows users to select the bandwidth that best fits their application needs. The instrument supports real-time measurement of up to four parameters simultaneously, such as impedance (|Z|), admittance (|Y|), phase angle (θ), resistance (R), capacitance (C), inductance (L), and dissipation factor (D).

Its Automatic Level Control (ALC) function ensures voltage and current stability during testing, enhancing accuracy and repeatability. The ultra-fast measurement speed of under 3 ms makes it ideal for high-volume production lines, while the optional ±12 V DC bias allows advanced component evaluation, including C-V curve testing.

With extensive interface support, including RS-232, LAN, USB, Handler, and optional GPIB, the 6621 Series integrates seamlessly into automated testing setups and PLC-controlled systems. The built-in comparator and BIN classification functions simplify quality control by automatically sorting components based on measurement criteria.

Designed for both R&D and manufacturing environments, the 6621 Series combines accuracy, speed, and flexibility, making it a reliable choice for capacitor, inductor, and general passive component testing.

  • Wide Frequency Range: 10 Hz to 30 MHz across multiple models for diverse applications.

  • High Accuracy: ±0.05% typical accuracy for precise component evaluation.

  • Ultra-Fast Measurements: Test speed under 3 ms for high-throughput testing.

  • Automatic Level Control (ALC): Maintains signal stability for consistent results.

  • Built-In ±12 V DC Bias: Optional OP-662102 module for advanced testing.

  • Multiple Test Modes: Meter and List modes for flexible measurement workflows.

  • Simultaneous AC/DC Measurement: Capture both AC and DC characteristics in one test.

  • Comprehensive Interfaces: RS-232, LAN, USB Host/Device, Handler, and optional GPIB.

  • Four-Parameter Display: View up to four measurement results simultaneously.

  • Data Storage and Transfer: Save setup files, results, and screenshots via USB.

  • Automation-Ready: Fully compatible with PLC and handler control systems.

Model Variants 6621-1 6621-3 6621-5 6621-10 6621-20 6621-30
Frequency Range 10 Hz – 1 MHz 10 Hz – 3 MHz 10 Hz – 5 MHz 10 Hz – 10 MHz 10 Hz – 20 MHz 10 Hz – 30 MHz
General Specifications Details
Frequency Setting Continuous
Frequency Resolution 100 mHz, 6-bit Frequency Input
Frequency Output Accuracy ±0.01%
Basic Accuracy Typical ±0.05%
AC Drive Level (100 Ω) 10 mV – 2 Vrms
AC Drive Level (25 Ω) 10 mV – 1 Vrms
Voltage Resolution 1 mV
Voltage Accuracy (ALC ON) 6% × Voltage ± 2 mV
Voltage Accuracy (ALC OFF) 10% × Voltage ± 2 mV
Test Signal Current Range 200 µA – 20 mArms
Current Resolution 10 µA
Current Accuracy (ALC ON) 6% × Current ± 20 µA
Current Accuracy (ALC OFF) 10% × Current ± 20 µA
DC Drive Level 1 V (fixed)
Output Impedance 25 Ω / 100 Ω switchable
Measurement Modes Meter mode, List mode
Measured Parameters |Z|, |Y|, θ, X, R, G, B, L, D, Q, DCR, C
Fastest Test Time < 3 ms
Connectivity RS-232, LAN, USB Host, USB Device, Handler, Optional GPIB
Additional Functions Comparator, BIN Classification, Simultaneous AC/DC Measurement