Fisher Decoupling Networks (DCN)
The Fischer Decoupling Network (DCN) is a ferrite tube device designed to be used in conjunction with an EM injection clamp to provide an effective decoupling function during conducted immunity testing.
Positioned within the test set-up, the DCN helps prevent disturbance signals from affecting connected equipment, ensuring that the injected signal is applied correctly to the equipment under test (EUT) without unintended interference to other components.
The Fischer DCN is fully compliant with the requirements of IEC 61000-4-6 Edition 4.0, providing confidence in both performance and standards adherence. Its design supports reliable and repeatable test conditions, making it a practical solution for a wide range of EMC immunity applications.
Fischer Decoupling Networks Datasheet Links
| Product | Aperture | Frequency | Height (MM) | Insertion Loss | Length (MM) | Width (MM) |
|---|---|---|---|---|---|---|
| F-203I-A-DCN-23mm | 23mm | 100 kHz - 100MHz | 134 | See Data Sheet | 610 | 75 |
| F-203I-A-DCN-32mm | 32mm | 100 kHz - 100MHz | 160 | See Data Sheet | 600 | 95 |
Frequently Asked Questions
What is a DCN used for?
A DCN is used to decouple auxiliary equipment during conducted immunity testing, ensuring disturbance signals are correctly applied to the EUT only.
Why is decoupling important in EMC testing?
It prevents unintended signal paths and protects connected equipment from interference, maintaining test accuracy.
Can EMC Hire help with setup?
Yes. EMC Hire can advise on correct DCN selection and integration into your EMC test setup.
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