I. Product Description
JIULI Common-mode inductance is a core component specifically designed for electronic devices to suppress electromagnetic interference. It uses high-purity manganese-zinc ferrite as the core material, and the windings are symmetrically wound with multiple strands of enameled copper wire. The magnetic field distribution can remain uniform. The shell is made of flame-retardant PBT material with a temperature resistance of 150℃, which not only can block external dust and moisture but also reduces heat conduction during the operation of the component. Ordinary common-mode inductors only meet the basic anti-interference requirements. This one is different. It has been optimized for the collaborative scenario of transformers and can be efficiently matched with High-frequency Transformer, Switching Power Supply Transformer, etc., suitable for complex circuit environments.
II. Technical Specifications
This common-mode inductor covers a working frequency range of 5kHz - 150MHz and can be compatible with the signal frequency bands of most electronic devices. The rated current range is between 0.3A - 25A, meeting the power requirements of everything from small household appliances to industrial equipment. The inductance quantity accuracy is controlled within ±3%, the interference attenuation is ≥ 40dB, better than the industry's conventional standards. The insulation strength reaches 3000V AC/1min, without any breakdown or flashover phenomenon. The operating temperature range is - 45℃ - 130℃, capable of handling extreme temperature conditions. Some models have reserved installation interfaces for matching with Ring Electronic Transformer and High Frequency Electrical Transformer, eliminating the need for additional circuit size adjustments.
III. Product Features and Advantages
Strong anti-interference effect: The high magnetic permeability core material combined with the symmetrical winding design can quickly absorb common-mode interference signals. Compared with ordinary common-mode inductors, the equipment signal distortion rate is reduced by more than 30%, solving problems such as equipment freezing and data transmission errors caused by interference.
Flexible adaptability: It can be used alone in anti-interference circuits of household appliances and communication equipment, or directly assembled with High-frequency Transformer, Switching Power Supply Transformer, etc., without having to redesign the inductor parameters due to different transformer models, reducing the circuit development time.
Outstanding durability: The flame-retardant and temperature-resistant shell and high-purity winding materials make the component less prone to aging or breaking down under long-term high-load operation. The service life can reach 60,000 hours, extending the service life of the component by 25% compared to ordinary common-mode inductors, reducing the maintenance cost of the equipment in the later stage.
IV. Application Scenarios
Power supply equipment field: When paired with Switching Power Supply Transformer, it can suppress the common-mode interference generated by the power supply module, ensuring the stability of notebook power supply and industrial switching power supply outputs, and avoiding damage to load equipment due to voltage fluctuations.
Communication transmission field: When combined with High-frequency Transformer and installed in routers and base station equipment, it reduces the impact of electromagnetic interference on signal transmission, improves data transmission rate and accuracy, and is suitable for the high-frequency working requirements of 5G communication equipment. Industrial Control Field: In the circuits of PLC, frequency converters and other equipment, it works in coordination with Ring Electronic Transformer and High Frequency Electrical Transformer to suppress interference signals during equipment operation, ensuring precise control of industrial automation systems.
V. Customer Benefits
By using JIULI Common-mode Inductance, customers do not need to add additional anti-interference circuit modules, and the product design process can be simplified. The strong anti-interference capability can increase equipment qualification rates and reduce rework costs caused by interference. The flexible adaptability reduces the types of accessories for multiple transformer models, saving inventory funds. Long service life reduces the number of equipment maintenance, indirectly enhancing the product's market competitiveness.
VI. Customer Reviews and Recommendations
"We produce industrial switching power supplies. Previously, we used ordinary common-mode inductors in combination with Switching Power Supply Transformer, and always encountered voltage instability due to interference. After switching to this JIULI model, the interference problem was completely resolved, and the product rework rate dropped by 20%." - Mr. Chen, Power Manufacturer. "The High-frequency Transformer of communication base stations is prone to interference. After adding JIULI common-mode inductors, the signal transmission bit error rate significantly decreased, and the stability of the base station operation improved a lot." - Mr. Zhao, Communication Equipment Maintenance Supervisor. "The factory frequency converters need to be equipped with Ring Electronic Transformer. This inductor can be directly installed without modifying the circuit. It has not caused any interference-induced downtime for over a year, and is very convenient." - Mr. Liu, Automation Factory Equipment Manager.






