HF2022R-252Y1R3-01

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Common mode chokes, also referred to as a balanced or three-wire choke, are an effective way of restricting the unwanted flow of current in AC circuits. The HF2022R-252Y1R3-01 is a common mode choke designed to provide additional protection from EMI noise in applications where a high-frequency, low-impedance path between nodes must be blocked. It utilizes two windings to oppose current flow, installed in a ferrite core, and is commonly used in switching power supplies, automotive electronics, lighting controllers, and industrial control systems.

Common mode chokes are usually designed for a specific frequency range and function by rejecting both common and differential-mode interference signals while allowing common-mode (in-phase) signals to pass. The HF2022R-252Y1R3-01 is designed for operating frequencies up to 20kHz, allowing it to reduce noise in a wide variety of devices and circuits. The choke’s components, such as its windings, shields, and ferrite core, all work together to reduce interference in a specific frequency range. The ferrite core acts as a high-impedance or short circuit to noise currents at discrete frequencies. In addition to this, the shield acts as a Faraday cage, and the windings provide an inductive barrier. This ensures that noise is filtered and can’t pass through.

When installed in a power supply, the HF2022R-252Y1R3-01 works to filter out high frequency noise that can damage sensitive components. It also prevents parasitic oscillations, which can occur when high frequency back EMFs reach sensitive circuits. The choke’s impedance increases with frequency, further reducing the probability of interference. Since the choke operates around 20kHz, it is much less effective at frequencies higher than this.

The HF2022R-252Y1R3-01 is an ideal component for applications where noise suppression is critical. Its low profile design and high current capacity make it a great choice for areas of high EMI, such as automotive electronics, heavy industrial equipment, and medical devices. Its double shielded design reduces the risk of system failures caused by electrostatic discharge, ensuring reliability in environments with a high level of electromagnetic interference. The choke also features a broad frequency range and low insertion loss, ensuring stable and reliable operation over a wide frequency range. Additionally, the common mode choke is RoHS compliant and UL approved, making it a safe and reliable solution for EMI protection.

The HF2022R-252Y1R3-01 is a versatile, high performance common mode choke for a wide range of applications. It features high common mode attenuation, low insertion loss, a broad frequency range, and a small form factor. Its double-shielded design ensures reliable operation by protecting circuits from EMI interference, while its ferrite core adds additional protection from noise currents at discrete frequencies. The HF2022R-252Y1R3-01 is the perfect choice for filtering out noise in noisy environments.

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