SD20-2R2-R

Fixed inductors, also known as inductors with a fixed inductance, are common electronic components. They are used to store energy in electrical circuits and serve many purposes, such as frequency selection, impedance matching, signal isolation, and voltage-current conversion. The SD20-2R2-R is a popular fixed inductor on the market. This article will provide an overview of the application field and working principle of the SD20-2R2-R.

SD20-2R2-R is a series of fixed high-frequency, high-current inductors that are mostly used in board-level integrated power systems with high operating frequencies and high assembly densities. SD20-2R2-R inductors have a small physical size but a large inductance value, making them attractive to board designers. The series has a wide inductance range from 2.5 uH to 2.2mH and is available in different case sizes. The SD20-2R2-R is rated for operation up to 100kHz and withstands high current up to 2A for frequencies up to approximately 10kHz.

The SD20-2R2-R has a wide range of uses and applications. It is suitable for regulating the current in power supplies and DC-DC converter circuits. It can also help reduce upper harmonics when used in parallel-resonant buck converters. It is ideal for switching power supply filters, allowing operation over a large frequency range. The inductor can also be used in a Harmonic Reduction Filter (HRF) application to dampen distortions and higher-order harmonics.

The working principle of the SD20-2R2-R is based on the electromagnetic effect that occurs when a current passes through a conductor, creating a magnetic field around it. This magnetic field is then used to induce a voltage and a current in the conductor, creating an inductive effect. The SD20-2R2-R utilizes this effect in two ways. First, it stores energy in its magnetic field, which helps with filtering and frequency selection. Second, it also acts as an impedance-matching device, allowing for a reduction in the current in the circuit.

The SD20-2R2-R is an excellent series of inductors for many different power supply applications and is widely used in industry. Its capability for storing energy from current, combined with its small size, makes it an attractive choice for any system designer or board engineer looking for a reliable and compact solution. Although its operation is limited to frequencies up to 100kHz, its wide inductance range makes the SD20-2R2-R suitable for a variety of applications.