CEP12D38-1R1MC-H

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Fixed inductors, also known as fixed coils, are used for many different applications. They are typically made of a coil of wire wound around a core of material and encased in plastic or metal. The windings and core material choices determine the inductance of the fixed coil. The inductance of the coil is then used to provide a fixed induction field that can be used for various functions. The CEP12D38-1R1MC-H is a fixed coil designed for use in applications where a narrowband low frequency signal needs to be amplified or a narrowband high frequency signal needs to be attenuated.

The CEP12D38-1R1MC-H is a common-mode choke designed to eliminate noise and reduce common-mode current in filter and differential applications. It has an inductance of 1.1uH and a DC resistance of 30mOhms with a self-resonant frequency of 8MHz. The operating temperature range for this coil is -40°C to +85°C. It is housed in a 1210 sized surface-mount package and is RoHS compliant. This material combination gives this part excellent electrical isolation and prevents the buildup of static charges.

The CEP12D38-1R1MC-H is used in power supply filters, motor controllers, and any application where high frequency switching is involved and narrowband frequency signal attenuation is needed. It eliminates transverse mode interference (external and internal), and reduces common-mode noise. It also improves the peak load current resistance and reduces the switching threshold of the circuit.

The working principle of the CEP12D38-1R1MC-H is based on the principle of electrical induction. When an alternating current is passed through the coil of the inductor, the magnetic field generated by the coil induces a voltage in the coil which is proportional to the change in current in the coil. As the alternating current’s frequency increases, the induced voltage also increases. This is because the inductor’s magnetic field is also increasing due to the higher frequency of the alternating current. The induced voltage can then be used to amplify low frequency signals or attenuate high frequency signals.

The CEP12D38-1R1MC-H is an excellent choice for applications that require signal amplification or attenuation and common-mode noise elimination. Its high frequency switching capabilities, wide temperature range, and small size make it a reliable and versatile option.

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