nanocrystalline toroidal magnetic cores

• How Reliable Are Nanocrystalline Cores Under Temperature Extremes?

  

  Nov 26, 2025

  At JH Amorphous, we are committed to ensuring that our products perform reliably, even in the most demanding environments. Our latest high/low temperature environmental reliability test has once again proven the exceptional temperature stability of our nanocrystalline toroidal magnetic cores. In this test, we subjected three of our nanocrystalline cores (LF-T322010-655R, LF-T402515-646R, LF-T311912-642R) to temperature shock tests at 0–5℃ and 80℃. The results were impressive, confirming the outstanding reliability of our cores under temperature extremes.   What Did We Test? 🔍 We conducted a full temperature cycle involving 25°C → Low Temperature → Recovery → High Temperature → Recovery. Throughout this process, the inductance variation stayed within approximately ±1%, showcasing the excellent magnetic performance stability of our cores across varying temperatures. (See the full data in the technical report.)   Why Does This Matter for Engineers? Exceptional Temperature Stability: The cores maintained excellent magnetic performance under both low and high temperatures, making them ideal for use in automotive electronics, power supply systems, and other high-reliability applications. Greater Safety Margins: The ability to perform reliably across a wide temperature range provides added safety margins for engineers designing mission-critical systems. Consistency Across Batches: With minimal inductance variation across batches, our cores deliver strong product consistency, ensuring low batch-to-batch variation — a crucial factor for ensuring stable EMC/EMI performance in your designs.   How Did We Conduct the Test? Our rigorous testing methodology follows a step-by-step process to simulate real-world temperature cycles: Room-temperature measurement → Exposed to 0–5°C for 1 hour → 30-minute recovery at room temperature → Re-measurement Room-temperature measurement → Exposed to 80°C for 1 hour → 30-minute recovery at room temperature → Re-measurement Both tests showed that all three cores demonstrated minimal inductance drift, confirming the superior temperature reliability of nanocrystalline materials.   Why Should Engineers Care About This? Nanocrystalline cores are low-loss and high-permeability, making them ideal for energy-efficient and high-performance applications. However, their temperature reliability is a key factor that sets them apart in demanding environments. In applications such as automotive systems, industrial equipment, and high-performance power electronics, our nanocrystalline cores deliver stable performance under temperature fluctuations. This makes them a reliable choice for engineers who require consistent, high-quality performance in their designs — even under extreme temperature conditions.   Conclusion: Our nanocrystalline cores not only provide low-loss, high-permeability, and superior performance, but also excel in temperature stability. Whether exposed to low or high temperatures, these cores remain reliable and stable, ensuring the long-term performance of your electronic systems. For engineers looking for magnetic material solutions that are high-temperature stable, low-temperature reliable, and batch-consistent, our nanocrystalline cores are an ideal solution. Contact us today to learn more about how we can help support your projects with high-performance, temperature-resilient materials.   Looking for Reliable Magnetic Materials for Your Next Project? If you're designing high-performance electronics and need stable, temperature-resistant magnetic materials, we’re here to help! Reach out to us to discuss how our nanocrystalline cores can meet the demands of your most challenging designs.

  Hot Tags : high/low temperature environmental reliability test temperature stable magnetic core High-temperature stable magnetic materials for power electronics Low-loss nanocrystalline cores with high temperature reliability nanocrystalline toroidal magnetic cores

  Read More