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MICROTEST

DC Bias Current Test System 6632S+ Series

The MICROTEST 6632S+ Series DC Bias Current Test System combines the precision of the 6632S Impedance Analyzer with a powerful DC bias source to deliver advanced magnetic component testing. With output currents up to 640 A, frequency response up to 30 MHz, and Equivalent Circuit Analysis capability, it is ideal for evaluating inductors, coils, ferrites, and magnetic cores in both research and production environments..

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  • Special Features
  • Specification

The MICROTEST 6632S+ Series is a complete DC bias current testing solution that integrates the 6632S Impedance Analyzer with a DC bias source. Designed for R&D, quality control, and production testing, it provides engineers with precise tools for analyzing magnetic saturation current and temperature rise current characteristics.

A key advantage of the 6632S+ Series is its Equivalent Circuit Analysis feature, which offers seven circuit models to help users evaluate the effects of parasitic elements on impedance and frequency behavior. This capability is critical for high-frequency applications where component performance can be influenced by unintended inductive, resistive, or capacitive elements.

In addition to impedance analysis, the system measures permeability (μr) and DC resistance (DCR), giving a complete electrical and magnetic profile of tested components. The wide frequency range of up to 30 MHz, combined with high-current capability, makes it suitable for testing a variety of inductive and magnetic components used in power electronics, RF circuits, and transformer design.

When deployed in production, the meter, list, and sweep modes enable flexible operation, while direct handler control ensures smooth automation. PC connectivity allows for graphical scanning, real-time analysis, and detailed reporting, ensuring both productivity and accuracy.

  • High Output Current Capability: Models ranging from 10 A to 640 A maximum output.

  • Wide Frequency Response: Options available for 3 MHz, 10 MHz, and 30 MHz testing.

  • Equivalent Circuit Analysis: 6632S model supports seven different equivalent circuit modes for analyzing parasitic effects on impedance and frequency.

  • Magnetic Saturation & Temperature Rise Testing: Scans and analyzes performance under varying currents.

  • Integrated Permeability Measurement: Built-in μr function for magnetic material property evaluation.

  • DCR Measurement Function: Accurate DC resistance testing.

  • Long-Term Continuous Power Output: Stable operation under maximum load for extended periods.

  • Multiple Test Modes: Meter mode, list mode, and sweep mode for flexible workflows.

  • Direct Impedance Analyzer Control: Seamless integration with automation and handler systems.

  • PC Connectivity & Reporting: Supports data logging, graphical current-frequency analysis, and report generation.

Model Frequency Response Max. Output Current Power Consumption Number of DC Bias Units Output Current per Unit
6632S+6210 100 Hz – 3 MHz 10 A 320 W 1 10 A
6632S+6220 100 Hz – 3 MHz 120 A 320 W 6 20 A
6632S+6223 100 Hz – 10 MHz 120 A 320 W 6 20 A
6632S+6225 100 Hz – 30 MHz 20 A 320 W 1 20 A
6632S+6240 100 Hz – 3 MHz 320 A 640 W 8 40 A
6632S+6243 100 Hz – 10 MHz 320 A 640 W 8 40 A
6632S+6243H 100 Hz – 10 MHz 640 A 640 W 16 40 A