Description
– A DC power jack, also known as a DC barrel jack or DC plug, is an electrical connector used to supply direct current (DC) power to electronic devices.
– It’s a common interface for powering small to medium-sized appliances and devices.
– The most prevalent type is the barrel connector, featuring a cylindrical or barrel-shaped body with a central pin and an outer sleeve.
Key Features:
Two-conductor design:
Typically, DC power jacks have two conductors: a central pin for positive voltage and an outer sleeve for the negative (ground) connection.
Secure connection:
The design ensures a reliable and robust connection between the power source and the device.
Standardized dimensions:
Different sizes and configurations (outer diameter and inner diameter of the barrel) exist, but the dimensions are standardized to ensure compatibility between different devices and power supplies.
Optional third conductor:
Some DC power jacks include a third conductor that can be used for switching or detection purposes (e.g., detecting when a plug is inserted).
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