SD12-2R2-R

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Fixed inductors are passive electronic components used to provide AC or DC inductance in an electronic circuit. The most commonly used core material is ferrite, although some devices use air-core or iron-core, as well as other materials. An inductor typically consists of a coil of wire wound around an insulating core or spool. The SD12-2R2-R is an axial inductor with copper wire wound on a ferrite core. It has a user-specified inductance range from 2.2µH to 12µH and a maximum DC current rating of 2A.

The SD12-2R2-R has a variety of applications. It is most commonly used in high frequency switching circuits, DC-DC converters, PSU filters, radio receivers, and wireless LAN systems. In addition, because the inductance and current ratings can be adjusted, the SD12-2R2-R can also be used in automotive and industrial applications. With its high current rating and compact size, the SD12-2R2-R is ideal for space-constrained applications.

The SD12-2R2-R works on a simple principle. As alternating current (AC) flows through a coil, it induces a magnetic field around it. This magnetic field, in turn, induces an electromotive force (EMF) in the coil. This EMF opposes any change in the current, resulting in a voltage drop across the inductor. This voltage drop is equal to the induced EMF multiplied by the total series inductance. The voltage drop reduces the total voltage available to the load, which impacts the circuit’s efficiency.

In addition, the SD12-2R2-R can also be used in series or parallel with other components to create an AC filter. In series, the combination of the inductor and the capacitor forms a low-pass filter, which allows low frequencies to pass through and blocks high frequencies. In parallel, the combination of the inductor and the capacitor forms a high-pass filter, which passes high frequencies and blocks low frequencies. This type of AC filter is used in audio systems and power supplies to prevent AC noise from entering the circuits.

Fixed inductors are essential components in a variety of electronic devices. The SD12-2R2-R from HOLTEK offers a reliable and compact solution for a wide range of applications. With its user-specified inductance range and high DC current rating, the SD12-2R2-R is ideal for high frequency switching circuits, DC-DC converters, PSU filters, radio receivers, automotive and industrial applications, and wireless LAN systems.

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