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Coaxial Power Connector Overview
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- Basic Structure
- Coaxial connectors connect extra-low voltage devices to external electricity
- Connectors consist of plugs (cables) and receptacles (sockets/jacks)
- Plugs have metallic outer body and hollow inner cylinder
- Connectors are separated by insulating layer with flared tips
- Technical Specifications
- Contact ratings range from unspecified to 5A (11A for high-power)
- Voltage typically up to 48V, with 12V being typical
- Sizes vary widely, with 3.5mm OD being most common
- Connector sizes don't consistently match power specifications across manufacturers
- Locking Features
- Lock-ring connectors use captive threaded ring for strong disconnection resistance
- Lock-tab connectors use metal tabs for compromise between disconnection and retention
- Standards
- IEC 60130-10 defines five standard connector types
- EIAJ RC-5320A specifies voltage ranges for five plug sizes
- DIN 45323 defines two sizes with maximum 34V and 3A rating
- Important Notes
- Different manufacturers may use different sizes for same voltage/current
- Incorrect power supply use can cause equipment damage or fire
- Connector sizes may vary between manufacturers and models