SC75B-120

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Fixed inductors are widely used in electronics, offering an estimate value of inductance that are mainly used to adjust current in circuits. Among them, the SC75B-120 is an axial-leaded inductor incorporating an extremely compact SMD package. Its size is very small, allowing component designers to save on board space to allow for higher component densities.

The SC75B-120 features an earth-friendly lead free construction and provides designers with a wide inductance range of 0.47 μH to 47 μH. It also offers low distortion rates, enabling very high frequency applications up to 4 GHz, and is also optimized for applications in Wi-Fi, RFID and mobile systems.

Application field and Working Principle of SC75B-120

Application Field: SC75B-120 inductors find many applications across both commercial and industrial use in power supplies, electronic loads, voltage regulators, and DC-DC converter applications. They are also widely used in automotive, medical equipment, white goods, instrumentation, telecoms, renewable energy, and military devices.

Working Principle: The SC75B-120 operates on the rudimentary principles of Faraday’s law of induction. When a conductor such as a wire is subjected to a changing magnetic field, either the magnetic field itself or the current through the wire, an electric field is generated in the conductor in accordance with Faraday’s law. The SC75B-120utilizes this electric field to induce a current through the wire, equaling the value of the initial current.

The main working principles underlying the SC75B-120s include inductance and impedance. Inductance is generated when two current-carrying paths (or wire coils) become close to each other. The inductance created increases with frequency, such that the greater the frequency, the larger the impedance of the inductor and, consequently, the higher the current need for the same output. This enables the SC75B-120 to generate more power at higher frequencies.

The SC75B-120 also features a high internal resistance that ensures less power is dissipated in the inductor coils and instead is directed to the load. Also, the coil construction of the SC75B-120 enables it to produce higher impedance values, enabling a more efficient operation. This makes the SC75B-120 perfect for current-limiting applications.

Lastly, the SC75B-120 has a surprisingly low electrical noise level, ensuring high performance in signal processing applications and makes it the perfect choice for filtering applications in a wide range of frequencies.

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