Allicdata Part #: | 732-4569-ND |
Manufacturer Part#: |
7446921027 |
Price: | $ 4.24 |
Product Category: | Filters |
Manufacturer: | Wurth Electronics Inc. |
Short Description: | CMC 27MH 1.2A 2LN TH |
More Detail: | 27mH @ 10kHz 2 Line Common Mode Choke Through Hole... |
DataSheet: | 7446921027 Datasheet/PDF |
Quantity: | 1000 |
25 +: | $ 3.85258 |
Voltage Rating - AC: | 250V |
Package / Case: | Horizontal, 4 PC Pin |
Height (Max): | 0.787" (20.00mm) |
Size / Dimension: | 1.319" L x 1.319" W (33.50mm x 33.50mm) |
Mounting Type: | Through Hole |
Features: | -- |
Approvals: | -- |
Ratings: | -- |
Operating Temperature: | -40°C ~ 125°C |
Series: | WE-LF |
Voltage Rating - DC: | -- |
DC Resistance (DCR) (Max): | 400 mOhm |
Current Rating (Max): | 1.2A |
Inductance @ Frequency: | 27mH @ 10kHz |
Number of Lines: | 2 |
Filter Type: | Power Line |
Part Status: | Active |
Packaging: | Tray |
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Common Mode Chokes are employed in a wide range of applications, including power electronics systems, storage switch devices, television sets, medical instruments, and motion control systems. They are used to reduce electromagnetic interference (EMI) in these systems. In this article, we will discuss the application field and working principle of the 7446921027.
Application Field
The 7446921027 is an EMI filter-compatible common-mode choke (CMCD). It is designed to reduce common-mode current, which is disruptive noise that can cause interference in electrical circuits. This is accomplished by utilizing the inductive value of the CMCD to filter any current disturbance comming from external sources. This EMI filter consists of two high frequency coils connected in series. The coils are connected in an in-line fashion, which allows them to be connected in both directions to the system being filtered.
This type of common-mode choke is used when there is a need for fast EMI filtering. It is an ideal choice for high speed communication systems, as it eliminates common mode noise without affecting signal quality. Moreover, it provides greater attenuation than single-ended filters. This is because the two coils act as a magnetic shield, which is very effective in attenuating common mode noise. The 7446921027 is also suitable for use in devices that require high frequency switching, such as power electronic systems.
Working Principle
The 7446921027 works by utilizing the magnetic property of the two inductors. When current passes through one of the inductors, it causes a magnetic field to be generated around it. This magnetic field then induces current in the other inductor, which causes a voltage to be generated in the opposite direction. This is known as a “back EMF”, and it is the basis of the 7446921027’s noise cancellation mechanism. The back EMF acts to offset the noise being caused by the common-mode current, which is why it is able to reduce the amount of EMI produced.
In addition to the back EMF, the 7446921027 also utilizes low pass filters in order to reduce the amount of high frequency noise that passes through it. The inductance value of the CMCD allows it to reject high frequency noise, while still allowing low frequency noise to pass through unscathed. This allows it to be used in a wide variety of applications, where both low and high frequency noise must be filtered out.
Overall, the 7446921027 EMI Filter is an efficient and reliable device that is suitable for a wide range of applications. It’s ability to reduce EMI through the use of back EMF and filtering makes it an excellent choice for those looking for quick and effective EMI reduction.
The specific data is subject to PDF, and the above content is for reference
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