48101C Inductors, Coils, Chokes

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Introduction: 48101C is the most commonly used fixed inductor in the industry. It is very popular in a wide variety of applications. It is made for a variety of different purposes including filtering, power applications, signal conditioning, broadband impedance matching, and electromagnetic interference (EMI) suppression.

Applications: Series 48101C fixed inductors are typically used in high-current application fields such as analog/digital audio, LED lighting, wireless and GPS systems, smartphones, servers, wearables, medical instruments, automotive electronics, and more. These fixed inductors are suitable for applications such as DC/DC converters, DC motor controllers, high-side switches, and power supplies. They are often used in radio frequency (RF) power amplifiers, high-frequency switching, and other precision applications.

Typical Working Principle: The typical working principle of 48101C fixed inductors includes a magnetizing current to create a magnetic field, which increases the inductance value. The inductance value is determined by the size, shape, and number of turns of the coil. A low level of current will cause only a small decrease in the inductance whereas larger currents cause a significant decrease in the inductance. This is known as saturation. The ability of the inductor to resist current determines its heat dissipation capacity. Higher current conductors require larger and denser wire or core material.

Construction: 48101C fixed inductors typically consist of an iron core wound with copper wire and insulated by a polymer or silicone material. The winding of the wire assists in the inductance effect by winding around the core a certain number of times. There can be a single-layer, multi-layer coil, or a combination of both. The cores may be powdered metal, ferrite, film, or ceramic for high power usage. The shielding material used to wrap the inductor helps to reduce electromagnetic fields and also helps to avoid unintentional coupling between adjacent inductors.

Parameters: Key parameter specifications include inductor values ranging from 0.1 μH to 1 mH, DCR from 0.01 Ω to 10 Ω, Q factor from 5 to 800, and current rating of up to 10 A depending on model and size. Other parameter specifications include temperature coefficient, saturation and losses, switching time, and self-resonant frequency.

Conclusion: Series 48101C fixed inductors are widely used in a variety of applications to filter, condition, or match impedances as well as to reduce electromagnetic interference. The working principle involves the creation of a magnetic field to induce the necessary current and to increase the inductance value. These fixed inductor components are constructed with an iron core wound with copper wire, shielded by polymer or silicone material, and offer a range of design and performance parameters depending on the application.

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