Power Line Common Mode Choke LF

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Emi Filter

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emc filter Power Line Common Mode Choke LFU

Description

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Brand: FERRITES

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Product Description

Do Common Mode Choke Have Polarity

The ‌Power Line Common Mode Choke‌, also known as a common-mode inductor, is a critical ‌EMI Filter‌ component designed to suppress electromagnetic interference (EMI) in power and signal lines. Unlike traditional chokes, its unique design eliminates concerns about ‌common mode choke polarity‌, allowing bidirectional installation in both AC and DC circuits. This flexibility makes it ideal for applications like ‌common mode choke on dc power‌ systems, where noise suppression is essential without directional constraints. By leveraging dual windings on a magnetic core, the ‌Power Line Common Mode Choke‌ neutralizes common-mode currents, ensuring compliance with EMI standards like FCC, VCCI, and CISPR.

‌Key Features‌

-‌Broad Application Range‌: Functions as an ‌EMI Filter‌ in circuits rated from 0.3A to 10A, with dual chokes spanning 0.7mH to 100mH.

-No Polarity Limitations‌: The absence of ‌common mode choke polarity‌ simplifies integration into AC/DC converters or ‌common mode choke on DC power‌ configurations.

-‌High-Frequency Performance‌: Targets common-mode resonance between 100kHz and 3MHz, a hallmark of premium ‌Power Line Common Mode Chokes‌.

-Robust Design‌: PCB-mount housing with excellent mechanical strength, ideal for ‌EMI Filter‌ deployments in automotive or industrial environments.

-Temperature Resilience‌: Operates reliably from -40℃ to +105℃, even in high-stress ‌common mode choke on DC power‌ applications.

‌Applications‌

-DC/DC & AC/DC Converters‌: Acts as an ‌EMI Filter‌ to suppress noise in power supplies, leveraging the ‌Power Line Common Mode Choke‌’s polarity-agnostic design.

-‌Automotive Electronics‌: Integrates into EV charging systems and onboard controllers, where ‌common mode choke polarity‌ independence ensures fault-tolerant performance.

-Consumer Electronics‌: Reduces interference in LCD/PDP TVs and computer peripherals using ‌common mode choke on DC power‌ topologies.

-‌Industrial Communication Systems‌: Enhances signal integrity in PLC networks, pairing ‌Power Line Common Mode Chokes‌ with ‌EMI Filters‌ for full-spectrum noise mitigation.

-Renewable Energy Systems‌: Deploys in solar inverters and battery storage units, where ‌common mode choke polarity‌ flexibility simplifies bidirectional DC power routing.

Series in this family

Product Series	DCR(Ω)MAX
LF35	0.07-3.1
LF1717	0.9-14.5
LF1922	0.12-2.0
LF2015	90-4000
LF2327	0.4-2.5
LF3221	0.03-3.0
LFET16	180-2500
LFET20	32-750

Ferrites is dedicated to setting a high bar of excellence for industries that integrate or utilize magnetics technologies in our Power Line Common Mode Choke LF products.

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