39mH 0.3A Mn-Zn Ferrite Common Mode Choke | Low Current EMI Filter | Magnetic components | Transformer, Inductor, Choke Manufacturer | Coilmaster Electronics

Mn-Zn ferrite common mode chokes are widely used in low-current precision electronics to reduce conducted EMI and ensure signal integrity. Our 39mH / 0.3A Mn-Zn choke delivers excellent suppression for audio circuits, communication devices, and small power supplies, making it a reliable choice for routers, IoT modules, smart meters, and medical monitoring equipment. With stable impedance characteristics in compact circuits, it helps engineers achieve global EMC compliance without increasing PCB size.

This 39mH / 0.3A through-hole choke provides high inductance for effective noise attenuation at lower current levels. The Mn-Zn ferrite core is sourced from qualified suppliers to maintain consistent magnetic parameters, preventing batch-to-batch variation that could impact EMI performance. Every unit undergoes 100% Hipot testing and full electrical characteristic inspection, ensuring insulation reliability and long-term stability. To further enhance product quality, we use automated winding technology for consistent coil geometry and select high-grade copper wire from global manufacturers, minimizing insulation breakdown risks under extended high-temperature operation. For customers with special requirements, inductance values and impedance peak frequency can be customized, with prototypes available within short development cycles.

For communication modules, smart sensors, or compact consumer devices that require dependable EMI suppression, our 39mH / 0.3A Mn-Zn ferrite common mode choke offers both cost-effectiveness and proven reliability. Please contact us through the inquiry form on our website, and our team will provide tailored solutions to support your project’s compliance and performance needs. Coilmaster Electronics is a high-current 39mH 0.3A Mn-Zn Ferrite Common Mode Choke | Low Current EMI Filter, Ideal for sensitive communication modules, smart meters, and low-power consumer products manufacturer from Taiwan since 1995. Coilmaster offers AEC-Q200 certified, high-efficiency power inductors, chokes, and transformers. Specializing in low-loss, high-current components for Automotive, 5G, and Industrial applications. Contact our experts for instant support. With more than 20 years of experience in magnetic territory, Coilmaster Electronics is specialized in the production of SMD power inductors, common mode choke, high frequency transformers.