Brief Introduction to Flat Spiral Coil Inductors

Hi guys! Today JRPanel would like to share a few points about Flat Spiral Coil Inductors with you.

Basically, a flat coil inductor is an inductor wound with flat copper wire. The picture below is the side view, we can see that each circle of copper wire is arranged very compact.

Here are some of the application characteristics of flat coils:

1. High current inductance

2. Lowest DC resistance

3. Can ensure smooth drop of current-resistant inductance

4. Suitable for reflow SMT process

5. Lead-free, RoHS compliant

This pciture shows a flat coil product.

It is generally used in power supplies, personal computers and other handheld electronic devices.

Advantages of Flat Coil Inductors are:

1. Scientific and reasonable space design.

2. Tight and flat between turns ensures the effective cross-sectional area of the wire, which greatly reduces the copper loss and increases the temperature rise current of the product.

3. Flat Coil Inductors offer superior shielding over conventional chip inductors. The shape of the core matches the coil design, reducing magnetic field leakage to a minimum.

Core airgap can be adjusted at will to allow for higher current shocks.

4. The coils have superb solvent resistance, thermal stability, radiation resistance, and freezing resistance.

In the actual manufacture and application process, we generally perform two kinds of tests on Flat Coil Inductors.

First, we need to test its resistance with a resistance meter, to make sure that the resistance value is within a reasonable range.

Next we measure the inductance and Q value with an inductometer. Q value, also known as the quality factor of an inductor, is the main parameter for measuring inductor components. It is the ratio of the inductor's inductance to its equivalent loss resistance when operating at a certain frequency of AC voltage. The higher the Q value of an inductor, the smaller its losses and the higher its efficiency.

Such an important parameter, JRPanel also has to ensure that it meets the customization needs of our user.

Comments

Identify Different Types of Transformer Cores, Based on Materials

Hi guys, this is JRPanel ! In previous blog s, we have introduced several points about High Frequency Transformer, like bobbins and Flat Spiral Coil . In this blog, JRPanel would like to introduce the commonly used magnetic cores in transformers , based on materials. Generally speaking, the material of the core determines the environment in which the transformer is used. A transformer that uses a core of a different material will have its performance affected, may even be non-functional. By material, magnetic cores are generally divided into the several categories . JRPanel will introduce them one by one to help you understand more fully. 1. Manganese Zinc Ferrite Core Mn-Zn core is a soft magnetic core with high initial permeability (2000~15000). The higher the initial permeability, the lower the surface resistance, so it is generally used in circuits below 1 MHz. Mn-Zn core has a high saturation flux density and causes lower losses, making it one of the most desirable

The Relationship Between Plastic Nameplates and Membrane Switches

Before the 1970s, most nameplates were made of metal materials. Today, plastic nameplates have been widely used in household appliances, instruments, meters, office equipment and other fields, and have become an indispensable part of electromechanical products. It not only plays the role of trademark identification, specification model, function indication, etc., but also becomes an element that reflects the appearance of the product. With the continuous use of new materials and new processes, the surface of plastic nameplates is constantly improving, and it has become the crystallization of three major technologies: comprehensive surface treatment, processing and molding, and screen printing. Plastic nameplates can be divided into 2 types according to their material processing methods and objects of use: 1. The injection-type plastic nameplate is made of ABS, PC and other engineering injection molding, and then undergoes secondary surface decoration processing such

Different Types of Tape Used in High Frequency Transformer

Hi guys, glad to see you here again! In previous JRPanel videos, you must have found that the high frequency transformer is always wapped in yellow tape. In this blog, JRPanel would like to introduce you the different types of tape used in High Frequency Transformer. 1. Mara Tape Mara tape, also known as polyester tape, uses polyester film as the base material and the adhesive is acrylic flame retardant adhesive. This kind of tape has excellent resistance to chemicals and moisture, and can resist cuts and abrasions. Because of its flame retardant and insulating characteristics, mara tape is often used as insulation between windings of high and low frequency transformers and as a core fixing material for transformers. There are many colors of Mara Tape, usually red, blue, yellow, white, etc. It has certain elasticity and stretchability, and one side is coated with adhesive. It is widely used in transformers, motors, capacitors and other types of electronic components for

JRPanel

Search This Blog