For connectors of home smart door locks that require miniaturization and easy installation, what type should be selected?

Q: For connectors of home smart door locks that require miniaturization and easy installation, what type should be selected?

A: Choose the M5 miniature series connectors (5mm in diameter, weight ＜2g). The 2 pins are used for power supply (3.7V lithium battery), and another 2 pins for fingerprint recognition signal transmission. With a plugging force of ＜5N, users can replace the battery by themselves without tools. It has an IP65 protection rating to resist rain and dust at the door entrance, and withstands a temperature range of -10~50℃, adapting to the indoor and outdoor temperature difference of homes.