DLH-14-0003

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Common Mode Chokes devices such as the DLH-14-0003 are specifically designed to attenuate differential mode noise and prevent it from propagating to downstream equipment. They are used in 60Vac/dc power applications to help meet EMI/EMC requirements, and they have the ability to suppress and reduce conducted emissions over a wide frequency range.

The DLH-14-0003 uses two inductors connected together in series with a magnetic shield between them. Each inductor is designed to have equal impedance for differential mode noise, but high impedance for common mode noise. Thus, while the differential mode noise passes freely, the common mode noise requires more effort to pass, so it is attenuated accordingly.

The DLH-14-0003 is ideal for applications where differential-mode and common-mode have conflicting requirements. For example, in power applications, it is often necessary to transfer power from the source to the load, while at the same time minimizing any interference between them. In other applications, it may be necessary to transfer data while minimizing any interference between devices.

In both scenarios, the Common Mode Chokes can be used to attenuate the common-mode noise and reduce the interference between the source and load. The DLH-14-0003 offers a maximum common-mode impedance of 9K Ohms, ensuring effective noise suppression, while still allowing the differential-mode signal to pass through.

The DLH-14-0003 also has a DC resistance feature, which helps to protect sensitive circuitry from overloading. It is also resistant to high temperatures and can handle up to 600Vac without any issue.

To ensure that the device works properly, the user should install it in accordance with the manufacturer’s instructions. This includes providing adequate ventilation, mounting the device to a solid surface, and using the recommended wire size and terminations.

In summary, the DLH-14-0003 is a powerful common mode choke designed to effectively reduce and attenuate noise over a wide frequency range. It features an impedance of 9K ohms, as well as a DC resistance feature for circuit protection. With its ability to handle up to 600Vac and temperatures, it makes an ideal addition to many power applications, ensuring effective noise suppression and data transfer with minimal interference.

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