All You Need To Know About Toroid Inductors

1. Toroidal inductors are passive electronic components that consist of a circular ring or doughnut-shaped magnetic core, made of ferromagnetic materials like ferrite, silicon steel, nickel, laminated iron, or iron powder, around which wire is wound. The circular shape of the core helps very less amount of magnetic flux to escape outside the core, thus making the inductor more efficient by radiating lesser electromagnetic interference. These toroid inductors are used to achieve energy efficiency, mainly when low frequencies require inductance. The various applications that use toroid inductors include air conditioners, refrigerators, computers, televisions, amplifiers, etc. Properties of toroid inductors One of the main properties of toroid inductors are that they generate high inductance due to the closed-loop core having a very strong magnetic field, and the very low electromagnetic interference that they emit out. Toroidal inductors can have higher Q factors and higher inductance than equivalent solenoid coils. This is because of the smaller number of turns required when the core provides a closed magnetic path. Another advantage of using toroid inductors is that they are much quieter than other typical inductors because of the lack of an air gap. Theory of toroid inductors Current passing through the inductor produces a magnetic field around it, whose strength depends upon the value of current passing through. The flux of this magnetic field would be the number of concentric circles perpendicular to the direction of current. The flux lines form complete loops around the coil. If the current through the coil is changed, the magnetic flux

2. produced also changes at the same rate, which links to the coil, thus inducing electromotive force within. This induced electromotive force is in opposite of the applied voltage across the coil. Choosing the right toroid inductors Various types of toroid inductors are available for use in multiple industries. They are categorized and selected based on a wide range of attributes like case size, case dimension, nominal inductance, DC resistance, current rating, tolerance, and packaging type. All these attributes serve as guides while selecting the right toroid inductor for your particular application. Why should you opt for Miracle Electronics? Manufacturers have adopted toroid inductors recently to abide by the increasingly strict international standards limiting the amount of electromagnetic field consumer electronics can produce. Miracle Electronics is the place where you can find the best-in-class toroid inductors made from the finest quality materials, constructed by first-class designers, labourers, and machinery, and adhering to the international standards of quality. Miracle Electronics’ inductors are ideal for any application that requires high DC current bias, and for switch-mode power supplies. Also, inductor style common mode chokes are available, designed to provide the highest common mode impedance over the widest frequency range. The inductors are properly designed and maintained to achieve the function of emitting lesser electromagnetic interference effortlessly, thus being widely used in modern low-power high- frequency electronics. The safe design, low profile inductors, consisting of superior quality wiring with high durability index along with the above mentioned properties is what makes Miracle Electronics the best toroid inductor coil manufacturer in India today. Moreover, all the inductors available are RoHS compliant, and reach compliant. You can get all your inductors and other such electronic components customized to suit your particular individual requirements.