HM28-35039LF

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Common Mode Chokes are electromagnetic components used in the isolation of signals in radio frequency (RF) and power applications. The HM28-35039LF is one such component, and it performs a variety of functions to help isolate signals from noise, improve signal quality, and reduce emissions. In this article, we will discuss the application field and working principle for the HM28-35039LF.

Application Field of HM28-35039LF

The HM28-35039LF is a high performance common mode choke designed for use in a variety of applications. It is typically used in AC power line conditioning, EMI filtering, power line noise suppression, and other noise-tolerant applications. The HM28-35039LF is ideal for telecommunication, automotive, industrial, and medical applications. It operates from -40°C to +85°C, making it highly reliable in a wide range of temperatures. It is rated at 1.2A DC current and features a choke impedance of 3 Ω typical at 100kHz.

Working Principle of the HM28-35039LF

The construction of the HM28-35039LF consists of two identical single windings, each wound on top of the other and sharing a common core. At low frequencies, the two windings operate in-phase, producing a linear current flow throughout the component. As the frequency increases, a phase shift occurs between the two windings, causing a 90° phase shift in the current at the windings. This phase shift produces a high inductance, which limits the current and reduces interference. This high inductance suppresses any noise on the same frequency that is coupled to the power lines. In addition to this noise suppression, the HM28-35039LF also helps reduce peak current and reduce high frequency radiation. The high current peaks generated during switching operations are suppressed, preventing the spikes from radiating from the power lines and causing interference.

The HM28-35039LF offers high performance in a small package, making it an ideal choice for a variety of applications. Its noise suppression characteristics make it an ideal choice for reducing interference in power lines and preventing interference in electronic systems. Its high inductance also helps reduce peak current, providing protection against voltage spikes and electromagnetic interference (EMI). Additionally, the high performance of the HM28-35039LF makes it suitable for a variety of industrial applications, including automotive, telecommunications, and medical applications.

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