We frequently get calls regarding the difference between the 1-776087-1 and 776087-1 headers from TE Connectivity. The main differences are listed below, but please review the datasheets to ensure the one you choose will work for your application.
They are manufactured by different divisions of TE, the 1-776087-1 is manufactured by TE Connectivity Deutsch Connectors and the 776087-1 is manufactured by TE Connectivity AMP Connectors.
The 1-776087-1 has gold-palladium finished contacts while the 776087-1 has a tin finished contacts.
The 1-776087-1 has an operating temperature of -40°C ~ 125°C and the 776087-1 has an operating temperature of -40°C ~ 105°C.
The 1-776087-1 comes to us shipped in trays (product shipped to customer may not be in a tray), and the 776087-1 comes to us in bulk packaging.