Golden Eagle Electronics Exclusive Decryption -- How To Control The Quality of Inductor Coils

Golden Eagle Electronics Exclusive Decryption -- How to Control the Quality of Inductor Coils

As we all know, the lifeline of any product lies in its quality, and inductor coils are no exception.

In the process of using inductor coils, various factors can often lead to quality issues. Then, what are the factors affecting the quality of inductor coils? Relying on over 20 years of experience in the inductor coil industry, Golden Eagle Electronics has sorted out and summarized the factors that affect the quality of inductor coils.

Pay attention to the current of the inductor coil
Inductor coils should be used within the designed rated current range and must not exceed the maximum carrying current, otherwise they are prone to burnout.

Appropriate inductor package size and appearance
Although meeting the corresponding performance parameters means that the inductor coil can theoretically ensure the inductor achieves the intended use effect, when manufacturing the finished product, it is also necessary to consider the position of the inductor coil in the PCB, and select the appropriate installation method, package size, and appearance to ensure the product's realization.

Must pay attention to the working environment of the inductor coil
When using an inductor coil, full consideration should be given to its working environment. First of all, attention should be paid to the temperature and humidity of the environment where the product is located, and whether the surrounding electromagnetic interference signal sources will affect the normal operation of the inductor coil.

Coils in power circuits are prone to the fault of being burned out due to excessive current. It may be that the filter inductor heats up first, and in severe cases, it burns into an open circuit. At this time, the voltage output circuit of the power supply will be open, and the fault manifests as no DC voltage output.

Selection of wire type and wire diameter
Choose the most suitable wire diameter for the inductor coil winding. It is best to choose from commonly used inductor wires, which can reduce costs.

Pay attention to the working frequency of the inductor coil
At low frequencies, inductor coils generally exhibit inductive characteristics, mainly used for energy storage and filtering. However, at high frequencies, inductor coils exhibit impedance characteristics, playing a role in blocking current, accompanied by phenomena such as energy consumption and heating, and reduced inductive effects. Different inductors have different high-frequency characteristics.

Pay attention to the Q value of the inductor coil
Take the magnetic ring inductor coil as an example. For the same inductance, if different magnetic rings are used, the final Q value will vary. Therefore, it is necessary to select a suitable magnetic ring according to the actual Q value requirements of the inductor coil.

Some trimmer coils may also have incorrect inductance due to loose magnetic cores. At this time, the circuit where the coil is located cannot work normally, which is manifested as increased signal loss or no signal output at all.

Characteristics and advantages of Golden Eagle Electronics' inductor coils:

All machines are Nittoku fully automatic winding machines with a repeat accuracy of 0.001, which may be beyond the reach of peers.

The daily output is 50,000 pieces, and there may be few companies in China that can achieve this.

Adopt lean production with one-piece flow production mode, which can timely detect quality abnormalities.

The raw material wire brands are well-known suppliers in the industry: ELEKTRISOLA, Daikoku (Japan), and Sumitomo.

100% of raw materials and finished products undergo life and reliability tests.

The factory area is nearly 30,000 square meters, so there is no need to worry about production capacity.