Differences and connections between DC Power Jack and AC plugs and sockets

Differences and connections between DC Power Jack and AC plugs and sockets
DC Power Jack is an electrical connector used to provide DC power, commonly used in AC adapters for portable electronic devices, automotive accessories, and battery packs. AC plug and socket is an electrical connector used to provide AC power, commonly used in household and industrial power supply systems. There are several differences and connections between DC Power Jack and AC plug sockets:
Voltage and frequency: DC Power Jack usually uses a rated voltage below 120VDC, while AC plugs and sockets usually use a rated voltage of 110VAC or 220VAC, with different standards in different countries or regions. DC Power Jack is not affected by frequency, while AC plugs and sockets need to be matched according to the frequency of different regions (50Hz or 60Hz).
Shape and size: DC Power Jacks typically have a cylindrical design with multiple models and specifications, but they do not have universality, and different models of DC Power Jacks may not be able to connect to each other. AC plugs and sockets are usually designed in a flat or square shape, with various types and standards, but they have certain universality within the same country or region. AC plugs and sockets of the same type can be connected to each other.
Polarity and contact number: DC Power Jack usually has two or three contact points, corresponding to functions such as positive pole, negative pole, and switch. It is necessary to pay attention to polarity matching, otherwise it may cause equipment damage. AC plugs and sockets usually have two or three contact points, corresponding to functions such as live wire, neutral wire, and ground wire. Polarity issues do not need to be considered, but safety grounding issues need to be taken into account.
Installation method: DC Power Jack is usually installed on a PCB or chassis through surface mounting or perforation welding, while AC plugs and sockets are usually fixed on walls or chassis through screws or buckles.
Application scenario: DC Power Jack is usually used to provide low-voltage DC power to various portable electronic devices, such as mobile phones, laptops, cameras, etc. AC plugs and sockets are usually used to provide high-voltage AC power to various household or industrial equipment, such as lamps, air conditioners, refrigerators, etc.
In summary, DC Power Jack and AC plug socket are two different types of electrical connectors, each with its own advantages and disadvantages, suitable for different application scenarios. When using, it is necessary to pay attention to selecting appropriate models, specifications, voltage, frequency, polarity and other parameters to ensure the normal operation and safe use of the equipment.