There are materials in the Contact RFI package from Beryllium Copper.It is possible for the EMI/RFI to function normally at -55°C~121°C.A type of Fingerstock is provided by the contacter RFI.
7-19PCI-NI-4.0 Features
Fingerstock
7-19PCI-NI-4.0 Applications
There are a lot of Leader Tech Inc. 7-19PCI-NI-4.0 RFI and EMI Contacts applications.