In 2006, MagSafe was first used on Macbook, which is a magnetic connector specially designed for laptops. This Macbook which used magnetic charging was loved by many customers after its launch. However MagSafe was discontinued in 2016-2019. Until 2021, the latest Macbook Pro laptops started using MageSafe 3. Magnetic connectors are back on Macbooks.
MacBook Pro can still be charged using the USB-C port. But using MagSafe 3, the magnetic connector charging port, allows for fast charging: up to 50% in 30 minutes. Using the magnetic connector to charge can prevent damage to the laptop caused by accidental pulling of the charging cable. When the charging cable is accidentally pulled, such as being tripped over, the charging cable with the magnetic connector interface will automatically separate from the laptop, so it won’t drop the laptop to the ground. This is also an important reason why laptop brand companies choose to use magnetic connectors for charging.
The two-pole 30V (ac or dc) 5A connectors can rotate through 360°, are self-mating and allow immediate disconnection.
The panel-mount part (right) measures 25mm across the circle and forms an IP67 seal with the panel. It needs a 20.75mm D-shaped hole in a 0.8 – 4mm panel.
The flying lead part (below) has spring-loaded pins and comes in straight and right-angled versions pre-wired with 3.5mm diameter 18AWG cable.There are magnets in both halves – no retention force is specified.
“Magnetic cable assemblies and connectors are a popular interconnect option for low-voltage applications,” said Farnell. “Magnetic connectors are a helpful solution when a quick disconnect is essential, or if accidental damage to connectors or cables is likely based on surroundings or environment.”
Connections to battery chargers is one potential application and, said the distributor, others can be found in medical, healthcare, maker and educational settings.