| Allicdata Part #: | PLK1012-ND |
| Manufacturer Part#: |
ELF-18D650U |
| Price: | $ 3.02 |
| Product Category: | Filters |
| Manufacturer: | Panasonic Electronic Components |
| Short Description: | COMMON MODE CHOKE 700MA 2LN TH |
| More Detail: | 2 Line Common Mode Choke Through Hole 700mA DCR 1... |
| DataSheet: |  ELF-18D650U Datasheet/PDF |
| Quantity: | 210 |
| 1 +: | $ 2.74680 |
| 10 +: | $ 2.32281 |
| 25 +: | $ 1.99105 |
| 50 +: | $ 1.94368 |
| 100 +: | $ 1.89630 |
| Voltage Rating - AC: | -- |
| Package / Case: | Vertical, 4 PC Pin |
| Height (Max): | 1.362" (34.60mm) |
| Size / Dimension: | 1.142" L x 0.827" W (29.00mm x 21.00mm) |
| Mounting Type: | Through Hole |
| Features: | -- |
| Approvals: | -- |
| Ratings: | -- |
| Operating Temperature: | -- |
| Series: | V |
| Voltage Rating - DC: | -- |
| DC Resistance (DCR) (Max): | 1.212 Ohm (Typ) |
| Current Rating (Max): | 700mA |
| Number of Lines: | 2 |
| Filter Type: | -- |
| Part Status: | Obsolete |
| Packaging: | Bulk |
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Common Mode Chokes, such as the ELF-18D650U, are inductive components used in electrical applications to reduce electric noise or electromagnetic interference on a signal line. Common mode chokes are often used in differential amplifier circuits to improve their common mode rejection. They are also used in radio frequency circuits and various commercial applications to filter the signal or reduce the flow of noise.
The ELF-18D650U is an inductor device specifically designed for common mode noise reduction. It is a radial inductor with a ferrite core and two coil windings that are wound together in a “spiral” fashion. The windings are wired in series but have opposite polarities, so that the AC noise induced by a voltage differential between the two sides cancels out. The device is designed with a specific DC resistance, saturation current, and inductance value. As such, it is capable of handling a variety of different operating currents.
In application, the ELF-18D650U should be connected between the signal source and its destination point, with the two coils wound in opposite directions to reduce common mode noise. The windings of the device should be placed in the signal line in order to reduce the current induced in the line by the signal, and it should have the correct orientation of the signal flow in order to be effective. The device can be used for either AC or DC applications, and its performance can be improved by placing additional capacitors in the signal line to reduce the voltage drops caused by the inductance.
The working principle of the ELF-18D650U is based on the inductive properties of the ferrite core and the two coil windings. The EMF generated by the device when it is exposed to a changing magnetic flux is equal to the sum of the opposing EMFs. This EMF is then opposed by the current flowing through the coil windings, creating a counter-EMF that reduces the common mode noise on the line.
The ELF-18D650U is a highly versatile device that can be used for a variety of applications, from radio frequency circuits to differential amplifier circuits. Its ability to reduce common mode noise makes it a very useful component in many types of electrical systems. Its versatile design and low DC resistance make it a great choice for many applications.
The specific data is subject to PDF, and the above content is for reference
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