| Allicdata Part #: | 3000-121-ND |
| Manufacturer Part#: |
3000-121 |
| Price: | $ 0.00 |
| Product Category: | Filters |
| Manufacturer: | Bourns Inc. |
| Short Description: | CMC 120UH 1.09A 2LN TH |
| More Detail: | 120µH @ 1kHz 2 Line Common Mode Choke Through Hole... |
| DataSheet: |  3000-121 Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | 0.00000 |
Specifications
| Voltage Rating - AC: | -- |
| Package / Case: | Horizontal, 4 PC Pin |
| Height (Max): | 0.400" (10.16mm) |
| Size / Dimension: | 0.490" L x 0.490" W (12.45mm x 12.45mm) |
| Mounting Type: | Through Hole |
| Features: | -- |
| Approvals: | -- |
| Ratings: | -- |
| Operating Temperature: | -55°C ~ 105°C |
| Series: | 3000 |
| Voltage Rating - DC: | -- |
| DC Resistance (DCR) (Max): | 166 mOhm |
| Current Rating (Max): | 1.09A |
| Inductance @ Frequency: | 120µH @ 1kHz |
| Number of Lines: | 2 |
| Filter Type: | Signal Line |
| Part Status: | Obsolete |
| Packaging: | Bulk |
Description
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Common Mode Chokes (CMChokes) are a type of component used to filter out electromagnetic interference (EMI) that may arise when signals are transmitted between two systems. They are primarily used to reduce crosstalk between two devices, such as in audio and video systems, microwave communications, cell phone transmitters, and other high frequency systems.The typical function of a CMChoke is to reduce common-mode currents that flow through two system nodes. In simple terms, they are used to prevent two (or more) wires from carrying the same amount of current. This is beneficial to reduce the amount of EMI that can escape from the system, as well as reducing crosstalk within the system.The 3000-121 CMChoke is a specific type of choke coil used for EMI reduction. This type of choke is designed to provide superior EMI performance at very high frequencies (up to 20 GHz). Its main use is in high power microwave applications, specifically for Ku-band radiotelecommunications systems.The 3000-121 CMChoke consists of a flat metallic core, an inductive coil-shaped winding, and an external metallic shield, all of which are housed in a rectangular package. The core is made of an alloy which can effectively reduce the amount of inductance in the choke. The winding is formed in such a way that the leakage flux generated by it is greatly reduced. The outer metallic shields of the choke reduce the interference generated by the winding to an absolute minimum and ensure that its magnetic flux is entirely contained within the package.The working principle of the 3000-121 CMChoke is based on the idea of creating a magnetic field. This magnetic field is generated by the winding which causes a current to flow through the network of inductors. Then, this current creates a magnetic field that forces the outer shield to shield itself and thereby reduce the amount of EMI or noise that can escape. The 3000-121\'s superior EMI performance is due to the fact that it has a relatively low characteristic impedance. In other words, it allows for a greater reduction in the amount of EMI or noise that can escape from the system. This low characteristic impedance allows for greater transmission efficiency and reduced crosstalk within the system.In general, the 3000-121 CMChoke is a highly effective component for EMI-reduction due to its superior EMI performance at very high frequencies. It is mainly utilized in high power microwave applications for Ku-band radiotelecommunications systems, and other advanced applications that require a reduction in EMI. It has a flat metallic core, an inductive winding, and a metal shielding, which make it highly effective at preventing any type of EMI from escaping. Finally, its low characteristic impedance allows for increased transmission efficiency and reduced crosstalk.
The specific data is subject to PDF, and the above content is for reference
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