There is a Contact RFI that contains materials from Beryllium Copper.It is possible for the EMI/RFI to operate normally at -55°C~121°C.A contacter RFI with the Fingerstock type.
25-109FSDS-BD-300 Features
Fingerstock
25-109FSDS-BD-300 Applications
There are a lot of Leader Tech Inc. 25-109FSDS-BD-300 RFI and EMI Contacts applications.