| Allicdata Part #: | HM28-32021LF-ND |
| Manufacturer Part#: |
HM28-32021LF |
| Price: | $ 0.00 |
| Product Category: | Filters |
| Manufacturer: | TT Electronics/BI Magnetics |
| Short Description: | CMC 7.8MH 900MA 2LN TH |
| More Detail: | 7.8mH @ 1kHz 2 Line Common Mode Choke Through Hole... |
| DataSheet: |  HM28-32021LF Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | 0.00000 |
Specifications
| Voltage Rating - AC: | 250V |
| Package / Case: | Vertical, 4 PC Pin |
| Height (Max): | 1.260" (32.00mm) |
| Size / Dimension: | 0.984" L x 0.748" W (25.00mm x 19.00mm) |
| Mounting Type: | Through Hole |
| Features: | -- |
| Approvals: | -- |
| Ratings: | -- |
| Operating Temperature: | -- |
| Series: | HM28 |
| Voltage Rating - DC: | -- |
| DC Resistance (DCR) (Max): | 500 mOhm |
| Current Rating (Max): | 900mA |
| Inductance @ Frequency: | 7.8mH @ 1kHz |
| Number of Lines: | 2 |
| Filter Type: | -- |
| Part Status: | Discontinued at Digi-Key |
| Packaging: | Bulk |
Description
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Common Mode Chokes are devices used to reduce common mode interference of circuits, principal to the HM28-32021LF application field. These are primarily used in automotive, power supplies, engines, telecommunication, and medical treatments. Common mode chokes are a type of electronic signal filter, specifically designed to reduce or block the common-mode interference. This interference is not affected by signal phase, and can cause errors and malfunctions in the data transmission and electrical circuits. Common mode chokes are constructed with three parts, an inductor, a ferrite core, and a cable.The inductor is the primary component of common mode chokes, and this part is generally composed of wire wound in a loop. The ferrite core is used to further concentrate the energy and create a higher frequency in order to block the interference. The cable is used as a connection to connect the inductor with the circuit.The working principle of common mode chokes is based on the fact that they are designed to block out and reject any interference when the signal passes through the inductors. The inductors are composed of several loops of wire that are connected to the core material, which in turn is connected to a cable.When the signal passes through this arrangement, the high frequency energy of the signal is stopped due to the high resistance of the ferrite core. This high resistance creates a barrier which blocks out any high frequency interference, leaving only the desired signal passing through the inductor.The HM28-32021LF Common Mode Choke is designed for automotive applications and basic AC/DC power systems. It is constructed with an inductor core of copper winding on a ferrite core, and connected with a specialized automotive connector. The output of this device is also designed to suppress any common-mode EMI interference, making it suitable for automotive use. In summary, Common Mode Chokes are used to reduce the common-mode interference in electrical circuit operations, like the HM28-32021LF application field. These devices are composed of three elements, an inductor, a ferrite core, and a connector that attaches to the circuit. The working principle of these devices is based on the fact that they use the inductor to block out any high frequency interference, allowing just the desired signal to pass through.
The specific data is subject to PDF, and the above content is for reference
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