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.
3-23T-SN-16 Features
Fingerstock
3-23T-SN-16 Applications
There are a lot of Leader Tech Inc. 3-23T-SN-16 RFI and EMI Contacts applications.