• Choke inductor

    Choke inductor

    Ferrite rod choke inductor is widely and popular in automotive electronics, with small size, the main advantage is cost effective, high inductance and low loss.

  • SMD air coil

    SMD air coil

    The main characteristic is extremely high Q factors and very tight inductance tolerance, As their name implies, air-core inductors do not use a magnetic core, resulting in the high Q and the lowest possible losses for high-frequency applications.

  • Air core inductor choke coil

    Air core inductor choke coil

    Made of Elektrisola enameled copper wire  with high stability.

    More than 100 automatic winding machines guarantee delivery on time.  

    Different spec. of copper coil in stock,  to meet customer different requirements.

    All raw material are  environmentally friendly.

  • Wireless charging module

    Wireless charging module

    Our wireless charging module include wireless transmitter coil and wireless receiving coil, could customize the coil module according to customer’s request.

  • 200uH Sendust Core Inductor

    200uH Sendust Core Inductor

    200uH Sendust Core Inductor

    High current power inductor is mainly made of high quality PEW or EIW copper wire

    Advantage of this high quality coil with litz wire and ferrite fortification in the center is that devices using this solution can be charged on charging stations of both standards.


    1.Customized according to your unique request

    2. Using Elektrisola wire, high stability.

    3. Precision wound coil and 100% all tested to ensure the quality.

    4. Build to confirm ROHS compliant

    5.Short lead time and quick sample

    6.Samples could be provided for your testing


    1. Wire diameter: Customized

    2. High current, up to 65A TYP

    3.  Current: 200uH

    4. Made according to customers request

    Size and dimensions:

    图片1 图片2


    1.     Inductance: 200uH for 32A.

    2.     Actual RMS current 32.2A rms 50Hz sine, but we want higher current capability of 50A, because efficiency is very important in the project.

    3.     Saturation current > 62A (50% of nominal inductance)

    4.     Current Ripple: 16A

    5.     Actual voltage 400V peak-to-peak 50kHz.

    6.     No housing, standalone inductors only, we will pour inductors in resin.

    7.     Resonant frequency Fr > 2.5MHz.


    Taking into account the need for high-requirement SRF value, we chose this large black magnetic ring for winding.


    In the field of magnetic toroidal inductors, small magnetic toroidal inductors have great demand in the market. On the contrary, there are few large magnetic loop inductors, which is based on technical difficulty and cost issues.

    Mature technology is the self-confidence of the factory.

    In our factory, the skilled workers have more than ten years of technical experience. In the production of these different types of magnetic loop inductors, the workers’ time and technology are in place in one step, which largely solves the problem of production efficiency.

    To design this three “high” product, we have passed many tests and determined the final competent solution through material selection and production methods.

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    The strict requirements of customers are also our driving force.

    Our magnetic core materials and copper wire materials are purchased from famous domestic raw material manufacturers KDM and Pacific Copper Wire. The skilled craftsmanship and superior materials make Mingda’s products more quality assurance.

    At the same time, our quality supervision is like the finishing touch, with careful inspection and testing before shipment, and safe and reliable packaging methods. The products we sell have won unanimous praise from customers in Korea and Japan!


  • 5.5mH 10 A Common mode choke

    5.5mH 10 A Common mode choke

    Common mode choke

    Magnetic ring common mode inductors are widely used in refrigerators, washing machines, cameras, small-size fluorescent lamps, tape recorders, color TVs, etc. Among our common products, magnetic ring common mode inductors mainly suppress AC line common mode choke The flow loop conducts noise. With it, we don’t have to worry about signal blocking and interference when using these electronic products.

    Used in AC tuner, fax, power supply, etc. Similar to the first point, the common-mode inductor mainly serves to suppress some of the messy output of the common-mode choke, and to accurately transmit the signal to the signal terminal.

    Some partners have very high requirements for the inductance of the inductor. At this time, it is recommended to use the magnetic ring common mode inductor. The higher the magnetic permeability, the lower the temperature that the inductor can withstand. At the same time, we can also reduce the number of windings of the inductor coil and use large-diameter copper wire. Choose the right core according to your needs.



  • Pancake coil

    Pancake coil

    Pancake coil is customized according to customers request.

    This kind of coil is made of excellent flat copper wire coil.

  • Toroid choke with base

    Toroid choke with base

    The advantage of toroid chokes are more prominent, such as better soft saturation, negligible core loss, temperature stability and low cost. The inductor with Fe Si Al magnetic powder core can eliminate the disadvantage caused by the air gap of ferrite magnetic ring.

  • Rod Core Choke

    Rod Core Choke

    For rod core choke, the most important function is that The AC signal could be filtered or resonant with resistor and capacitor.

  • Radial Leaded Wire Wound Inductor

    Radial Leaded Wire Wound Inductor

    The I-shaped inductor is an electromagnetic induction element composed of an I-shaped magnetic core frame and enameled copper wire. It is a component that can convert electrical signals into magnetic signals. The I-shaped inductor itself is an inductor. The skeleton of the I-shaped inductor is supported by the winding of the copper core coil. I-shaped inductance is one of the attributes of electronic circuits or devices. 

  • PFC inductor

    PFC inductor

    PFC inductor, also called toroidal inductor, Capable of handling very high DC bias current with minimal inductance roll off.

    “Power Factor Correction” The power factor is the ratio of the effective power divided by the total power consumption (apparent power).

  • Power toroidal inductor

    Power toroidal inductor

    For sendust power toroidal inductor, The main advantage is:  SENDUST and KOOL MU cores are distributed air gaps with low losses at high frequencies, Through hole mount with pre-tinned leads that can be directly soldered to PCB.The loss is lower than that of the iron powder core, the good straight iron silicon magnetic circulation bias characteristics, and the cost is between the iron powder core and the iron nickel molybdenum (MPP) magnetic powder core

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