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

It is well-known that the lifeline of any product lies in its quality, and inductor coils are no exception.

When using inductor coils, various factors can often lead to quality issues. So, what are the factors that affect the quality of inductor coils? Drawing on over 20 years of experience in the inductor coil industry, Golden Eagle Electronics has sorted out and summarized these influencing factors:

Pay attention to the current of the inductor coil
The inductor coil should be used within the designed rated current range and must not exceed the maximum carrying current, otherwise, it is prone to burning out.

Appropriate inductor packaging size and appearance
Even if the inductor coil meets the corresponding performance parameters and can theoretically ensure the inductor achieves its 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 a suitable installation method, packaging size, and appearance to ensure the product's functionality.

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

Coils in power circuits are prone to breakage due to excessive current. It may be that the filter inductor heats up first, and in severe cases, it burns open. 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 diameter
Choose the most suitable wire diameter for the inductor coil winding. It is best to select from commonly used inductor wires, which can reduce costs.

Pay attention to the operating 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, acting as current blockers, 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 factor of the inductor coil
Taking the magnetic ring inductor coil as an example, for the same inductance, different magnetic rings used will result in differences in the final Q factor. A suitable magnetic ring should be selected according to the actual Q factor 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 manifests as increased signal loss or no signal output at all.

Characteristics and advantages of Golden Eagle Electronics' inductor coils:

1. All machines are Nitto Seiko fully automatic winding machines with a repeat accuracy of 0.001, which may be unattainable by peers.

2. The daily output is 50,000 pieces, and there may not be many companies in China that can achieve this.

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

4. The raw material wire brands are well-known industry suppliers such as Elesole and Japan Daikoku, Sumitomo.

5. 100% of raw materials and finished products undergo life and reliability testing.

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

Golden Eagle Coils, with its excellent quality and service, outperforms other peers. Choosing Golden Eagle is choosing the path to success.