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SMD common mode introduction

商品: SMD common mode

發表日期:2018-10-29 16:19:42

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In electronics, a choke coil is an inductor used to block higher-frequency while passing lower-frequency of direct current (DC) or alternating current (AC) in an electrical circuit, A choke usually consists of a coil of insulated wire often wound on a magnetic core, although some consist of a doughnut-shaped "bead" of ferrite material strung on a wire. The choke's impedance increases with frequency. Its low electrical resistance passes both AC and DC with little power loss, but its reactance limits the amount of AC passed.
SMD common mode:SMD common mode introduction
 
The name comes from blocking—"choking"—high frequencies while passing low frequencies. It is a functional name; the name "choke" is used if an inductor is used for blocking or decoupling higher frequencies, but is simply called an "inductor" if used in electronic filters or tuned circuits. Inductors designed for use as chokes are usually distinguished by not having the low-loss construction (high Q factor) required in inductors used in tuned circuits and filtering applications.
The SMD common mode, where two coils are wound on a single core, is useful for suppression of electromagnetic interference (EMI) and radio frequency interference (RFI) from power supply lines and for prevention of malfunctioning of power electronics device. It passes differential currents (equal but opposite), while blocking common-mode currents.[3] The magnetic flux produced by differential-mode (DM) currents in the core tend to cancel each other out since the windings are negative coupled. Thus, the choke presents little inductance or impedance to DM currents. Normally this also means that the core will not saturate for large DM currents and the maximum current rating is instead determined by the heating effect of the winding resistance. The CM currents, however, see a high impedance because of the combined inductance of the positive coupled windings.
SMD common mode are commonly used in industrial, electrical and telecommunications applications to remove or decrease noise and related electromagnetic interference.

BINGRI Tech's common mode choke (common mode inductor), which can replace other competitors for better price and delivery. Common mode chokes can also be used to design different applications, such as high current common mode chokes, Ethernet common mode chokes, SMD common mode chokes, surface mounted common mode chokes for other Applications will use common mode chokes, common mode inductors, and common mode filters. If you already use a common mode choke from another manufacturer, please let us know our part number and we will provide you with the most suitable common mode choke product.

More about SMD common mode: SMD common mode choke

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分類標籤:
共模電感 SMD choke
推薦功能:
SMD

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