IR02ER4R3H

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Fixed inductors are electrical components used in both high and low frequency applications. Really, they are traditionally used in alternating current (AC) circuits since their reactive components behaves as resistance or as condenser change according to the signal frequency passing through them.The IR02ER4R3H is a fixed inductor of small envelope, widely used in low power SMD applications in high current circuits. It shows a wide frequency range and stable behavior in different environmental conditions like moisture, etc.The IR02ER4R3H is a very common fixed inductor been in the market for many years. They are used in multiple applications, such as high-power supplies, audio amplifiers, switched mode power supplies, power factor correction, motor drives, switched-mode routers and other RF and microwaves applications.Their working principle is based on Faraday\'s law of induction. This law states that when the current flowing through a coil changes, it produces a varying magnetic flux which can induce an EMF (a voltage) in a closed circuit. When we look inside an inductor, we can actually see a coil of wire. When current flows through this coil, a magnetic field is created around the coil. The strength of the magnetic field is proportional to the amount of current flowing through it.When this current changes, the magnetic field also changes. As a result of the changing magnetic field, it induces an EMF across the inductor, which is commonly known as back EMF. The term used to describe the amount of back EMF is called inductance. The inductance rating of an inductor depends on the number of turns the wire is coiled in, the amount of current passing through it, and the size of the core material inside the coil.The IR02ER4R3H has a self resonant frequency of up to 16.5 MHz, making it an ideal choice for low frequency applications. It also has a low Parasitic Capacitance rating of less than 1.2 pF, making it ideal for high frequency applications as well. It also has a low DCR (Dissipation Constant Resistor) rating of only 0.8 Ohms, which makes it an excellent choice for high current applications.In conclusion, the IR02ER4R3H fixed inductor is a widely used component mostly used in low-power SMD applications. It can be used in both high and low frequency applications, with the advantages of a wide frequency range, a low DCR rating and a low Parasitic Capacitance rating that make it suitable for a wide range of applications. As their working principle is based on Faraday\'s law of induction, they are used to generate a back EMF in order to induce an EMF (voltage).

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