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.
11-45C-070-DL-SN-16 Features
Fingerstock
11-45C-070-DL-SN-16 Applications
There are a lot of Leader Tech Inc. 11-45C-070-DL-SN-16 RFI and EMI Contacts applications.