The 3-640441-2 from TE Connectivity is a MTA-100 series receptacle. It is a two position receptacle with pitch spacing of 2.54mm and used with MTA.100 header & MTA.100 IDC posted connector.
Rated current is 5A and rated voltage is 250VAC
Base material of contact is copper alloy with tin plating
Housing material is nylon
Single row housing
High operating temperature range of -55°C to 105°C