ELC-06D221E

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Fixed inductors (also known as fixed coils) are a type of electric component with a wide range of applications, such as power supplies, filter networks, and dc-dc converters. They are usually composed of a coil of wire with a core and sometimes, other elements; although in very basic cases, the core can be missing. The ELC-06D221E is one particular type of fixed inductor, with special features and properties.This product is developed by Murata, adapting its low-profile damped construction methodology. The combination of a low profile package, a small 2.2x2.2 mm size, and a lightweight (0.45 g) mass, make the ELC-06D221E applicable to space-constrained designs. It features an inductance of 220 nH and a rated current of 1.6 A. Furthermore, it has a low DCR of 2.5 mΩ and a high self resonance frequency of 1.2 GHz.The operating principle of the ELC-06D221E is based on the well-known concept of electromagnetic induction. This resembles the behavior of a transformer where an alternating current in one of the coils (the "primary") will induce and create a current in another coil (the "secondary"). The inductor, on the other hand, also relies on the same effect but in this case, the same coil is used for both the primary and secondary, and is then connected to a circuit for the completion of a frequency-dependent electrical path.This form of copper wire encircling a core produces a magnetic field around it, which opposes the passage of current and induces a voltage. This voltage lags the current by 90°, creating a 90° phase shift that depends on the inductance and frequency of this component. The ELC-06D221E\'s reduced self-resonance frequency allows the circuit to provide better in-band attenuation.Finally, since it has a low ESR, switching applications benefit from high ripple current cycles and reduced power dissipation. Its applications include power conversion systems, DC/DC converters, telecommunication, switching power supplies, and other power supply related products.In summary, the ELC-06D221E is a fixed inductor developed by Murata. It has a small form factor and a low profile package that makes it ideal for space-constrained designs. It features a low DCR, a 220 nH inductance, and a high self resonance of 1.2 GHz. It operates according to the principle of electromagnetic induction, providing frequency-dependent electrical paths and a 90° phase shift. Its applications include power supplies, filter networks, dc-dc converters, switching power supplies, and other related products.

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