Electronic systems commonly face industry pain points such as electromagnetic interference and signal integrity degradation, which directly affect the stability of equipment and the pass rate of certification. We use high-permeability nanocrystalline materials and three-dimensional winding technology to optimize the magnetic circuit design, enabling the Common Mode Inductor to achieve a 40dB common mode suppression ratio in the 100kHz-1MHz frequency band. The measured data indicates that this series of products increase the pass rate of electromagnetic compatibility tests for equipment by 65%, and reduce the system bit error rate to 10⁻⁹. It is widely used in power modules and signal transmission lines.
Core Product Characteristics
Dual Shielding Structure: The copper foil shielding layer reduces the radiation emission of Differential Mode Inductor by 15dBμV/m
Thermal Compensation Design: The variation rate of inductance within the -40℃~125℃ temperature range is ≤±5%
Automated Production: The fully automated production line of winding - potting - testing ensures consistency
Application Precautions
① Maintain a minimum 20mm spacing from High-frequency Transformer during installation
② Avoid parallel wiring with high current circuits
③ The humidity in the storage environment should be controlled at ≤60%RH
Frequently Asked Questions
Q: How to select the appropriate common mode inductor parameters? A: Comprehensive selection based on noise spectrum, impedance matching, and current capacity is required. We provide free EMC pre-test services.
Q: Temperature rise during full-load operation? A: The I-type magnetic core heat dissipation design ensures that the temperature rise under rated current is ≤25K, meeting the UL1446 insulation system standard.
Q: Does it support automotive electronic applications? A: Certified by AEC-Q200, it meets the ISO 7637-2 standard requirements for 5a/5b pulse tests.
Q: Minimum order quantity and delivery cycle? A: Standard models require a minimum order of 1000pcs, and delivery within 15 working days is supported. Samples can be applied for free.
Test data from a communication equipment enterprise shows that after using this series of inductors, the RE test margin of the product increases by 8dB, and no additional filtering circuits are required. Its unique dual-winding design can simultaneously suppress common mode and differential mode noise, and performs particularly well in the secondary filter circuit of High-frequency Transformer. This solution that integrates electromagnetic compatibility theory with material technology provides a highly reliable noise suppression solution for electronic devices.
