Which EMI shielding material is better?

Hello,

I have a little bit problem on choosing which EMI shielding material I should buy. I have found these 3 materials from element 14 and can give me some advice or suggestion which one to choose or any other recommendation?

I want the EMI shielding sheet to cover the electronic circuit board.

1 Wurth Elektronik 354002354002 Ferrite Sheet Shielding Square 120mm

2 Laird Technologies WS-8463-NAWS-8463-NA Shielding Sheet RFI/EMI

3. 3M CN-3190 Sheet, Polyester, Flat, 70DB

Thank you.

Regards,

Wai Lynn

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0 Former Member over 9 years ago

Actually, in the electronic circuit board, there are three signal generators and the three amplifiers to amplify the signals.Those three amplifiers are placed near laser diode mount and one of the amplifiers seems disturbing the laser background intensity. We suspect that it is because of EMI radiation and wanted to try experimenting using EMI shielding method to see whether it is because of EMI radiation or not.

Wai Lynn
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0 michaelkellett over 9 years ago in reply to Former Member

Without pictures, schematics and some idea of operating levels and frequencies it isn't possible to help.

MK
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0 michaelkellett over 9 years ago in reply to Former Member

Without pictures, schematics and some idea of operating levels and frequencies it isn't possible to help.

MK
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