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DC Bias Current Test System 6350+ Series

The MICROTEST 6350+ Series DC Bias Current Test System is designed for high-precision testing of inductors, coils, ferrites, and magnetic cores, with output currents up to 640 A and frequency response up to 500 kHz. Featuring long-duration maximum power output, DCR measurement, and open/short calibration, it is ideal for both R&D and production environments that require accurate saturation current evaluation..

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The MICROTEST 6350+ Series combines precise current output with versatile frequency operation to meet the demands of modern magnetic component testing. These systems are available in configurations with maximum DC bias currents of 120 A, 320 A, and 640 A, making them suitable for a wide range of inductive component sizes and performance levels.

With a frequency response range of 100 Hz to 200 kHz (6355+) or 100 Hz to 500 kHz (6356+), the system provides accurate evaluation of components across low to medium frequency ranges. The DCR measurement function adds another layer of testing capability, enabling detailed analysis of energy losses and heat generation.

The open/short calibration function ensures measurement accuracy by compensating for fixture and lead effects, while the multi-step list mode allows for automated, sequential testing — improving efficiency in both research and production environments. The system’s continuous maximum power output capability makes it suitable for extended duration tests without compromising stability.

  • High Output Current Capability: Models available with 120 A, 320 A, and 640 A maximum output.

  • Wide Frequency Response: Options for 200 kHz or 500 kHz operation.

  • DCR Measurement Function: Measures DC resistance for complete performance analysis.

  • Continuous Power Output: Sustains maximum power over extended test durations.

  • Open/Short Circuit Calibration: Ensures accurate and stable measurement results.

  • Multiple Test Modes: Supports meter mode and multi-step list testing.

  • Optimized for Magnetic Component Testing: Designed for evaluating saturation characteristics of inductors, coils, ferrites, and core materials.

  • Robust Output Impedance: 100 Ω for consistent measurement integrity.

Model Frequency Response Max. Output Current Power Consumption
6355+6243H 100 Hz – 200 kHz 640 A 640 W
6355+6243 100 Hz – 200 kHz 320 A 640 W
6355+6223 100 Hz – 200 kHz 120 A 320 W
6356+6243H 100 Hz – 500 kHz 640 A 640 W
6356+6243 100 Hz – 500 kHz 320 A 640 W
6356+6223 100 Hz – 500 kHz 120 A 320 W