RL855-561K

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Fixed inductors are electronic components that store energy in the form of a magnetic field. The RL855-561K is a fixed inductor, consisting of a coil form, a wire wound core and an epoxy resin. It is mainly used in switching power supplies, power amplifiers, DC-DC converters, AC converters, servo control circuits, etc.

The working principle of the RL855-561K is based on Faraday’s law of induction. When current passes through a wire wound coil form, a magnetic field is produced. This magnetic field will induce an electromotive force (EMF), thereby producing an inductance. The RL855-561K use this property to transform electrical energy into magnetic energy.As the current through the coil changes, the electromotive force and magnetic field also change, inducing an electrical current that is proportional to the rate of change of the current passing through the coil. The RL855-561K is also designed with a high frequency resonance circuit, meaning that the inductor can quickly respond to varying frequencies.

The RL855-561K is most commonly used in switch-mode power supplies to limit the current flow and serve as a buffer, stabilizing the output voltage. It can also be used to filter noise and radio frequency interference (RFI). In addition, because it has a self-resonant frequency of up to 200kHz, the RL855-561K can be used in high-frequency oscillators, pulse transformers, and inverter circuits.

Furthermore, the RL855-561K can also be used as an impedance-matching device in amplifier systems; as a voltage transformer in high-voltage DC power supplies; and in low-resistance areas, due to its low DC resistance (typically 0.25Ω). The inductance of the RL855-561K is also highly stable over temperature, making it suitable for use in many high-temperature environments.

Overall, the RL855-561K is a versatile and reliable fixed inductor, suitable for many applications. With its high frequency resonance circuit, low DC resistance, and temperature stability, it can provide effective power filtering, impedance matching, and voltage transformation in a variety of circuits.

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