EMI filters gards MRI rooms from LED lighting interferences

January 03, 2019 // By Julien Happich
TE Connectivity has designed special electromagnetic interference (EMI) filters for use in Magnetic Resonance Imaging (MRI) rooms where Class II drivers are used to power LED lighting.

These new TE filters are part of the Corcom family of products, which are highly-engineered, sealed assemblies of electrical filtering components that eliminate unwanted electrical magnetic interference. With the new Corcom filters for LED lighting in MRI rooms, room light manufacturers can offer high-efficiency, patient-centric lighting while safeguarding against electrical interference risk to the MRI equipment’s functionality and output that may be caused by LED lights. The filters are compatible with 40V, 3A drivers and are an excellent choice for high-noise drivers. The soldered and fully shielded unit comes with a high quality steel mesh guard on the insert pipe that protects the MRI room from external radiated noise and EZ connect terminals for fast set-up and install. The filter design can attenuate noise within the bandpass frequencies between 10 KHz and 1GHz. It uses a powerful three-stage bandpass circuit to bring insertion loss down to -100dB.  The filters, which can be retrofitted to existing equipment, come in versions with two, three and four channels, providing OEM lighting manufacturers the scalability they need in developing light fixtures for their customers.

TE Connectivity - www.te.com


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