In the power electronics industry, electromagnetic interference (EMI) is like an "invisible killer". Have your products repeatedly failed in certification tests? Have they suffered from sudden noise interference, resulting in unstable performance and even having to be reworked and modified in the design, which not only costs a lot but also delays the schedule? These pain points are precisely the focus that JIU LI has deeply studied and is committed to solving. The Common Mode Choke (common mode choke) we provide is precisely the core solution for such electromagnetic compatibility (EMC) issues. It can efficiently filter out common-mode noise on power lines or signal lines, ensuring that your products can easily pass various strict EMC regulations tests, enhancing overall stability and reliability. In simple terms, JIU LI's CM Choke is like a precise "noise filter", building a solid firewall for your power system.
The Common-mode Inductor of the JIU LI brand is not an ordinary component. Its excellence stems from the pursuit of the utmost detail.
Product Core Features:
High impedance, strong filtering: We provide extremely high impedance values at key noise frequencies (such as 30 MHz - 100 MHz), which can act like a barrier to effectively block the propagation path of common-mode noise. The filtering effect is immediate.
Wide temperature range, high reliability: Using high-quality magnetic core materials and automated winding processes ensures that the inductor maintains stable performance within a wide temperature range of -40°C to 125°C. This effectively addresses drastic temperature changes in the power supply environment, resulting in a longer lifespan.
Compact design, space-saving: The product series includes various surface mount (SMD) and pin-type packaging options, with a small size, making it ideal for today's high-density circuit board designs, helping you easily achieve miniaturized product planning.
Tips for selection:
Selecting based on impedance curves: Do not just focus on a single inductance value. Please refer to the impedance-frequency curve chart provided by us according to your target filtering frequency and choose the model with the highest impedance at the corresponding frequency point, which will have the most direct effect.
The current value is a hard indicator: Make sure that the rated current of the Common Mode Choke you select is greater than the actual working current in your circuit and reserve a certain margin. This is the prerequisite for ensuring saturation-free and long-term stable operation.
Choosing JIU LI means choosing peace of mind. Our Common Mode Chokes are widely used in switching power supplies, inverters, industrial frequency converters, and automotive electronics, etc. With their outstanding stability and consistency, they have become the default choice trusted by many engineers. Let us help you clear the EMI obstacles in one go, making product development smoother and making the product launch more competitive.




