iPhone 12 Accessory Design Guidelines for Apple Devices

[polyphenol]

I see that Apple have made available their updated Accessory Design Guidelines for Apple Devices R13. This includes details throughout the document for the iPhone 12 range. Section 23 has details for MagSafe - all the details required for complying Apple's standards to products.

https://developer.apple.com/accessories/Accessory-Design-Guidelines.pdf

Not pretending to understand every little bit of the specifications!

The attachment force is stated to be between 600 and 900 gf. (Haven't even thought about gram-force in forever, but close enough to 6 to 9 newtons.)

There is a ho-ho statement:

Apple recommends avoiding the use of magnets and metal components in accessories.

Just how do you manage that and implement MagSafe?

 

[537635]

I don't see how this kind of force would be sufficient for car mount. Unless there are additional magnets in the mount, compared to chargers, where there has to be a balance so it is not do difficult to remove the charger.

Furthermore there is an additional magnet outside the circle (as seen on the clear case). Probably for accessories, which require proper orientation of the phone.

 

[polyphenol]

I don't see how this kind of force would be sufficient for car mount. Unless there are additional magnets in the mount, compared to chargers, where there has to be a balance so it is not do difficult to remove the charger.

Furthermore there is an additional magnet outside the circle (as seen on the clear case). Probably for accessories, which require proper orientation of the phone.

I might have got it wrong, but I think the detachment force is meant to be the result of combining the phone and the attached device. The specifications for the magnets are very precise and don't appear to say some devices should have significantly more powerful magnets than others.

Probably why Apple refer to Orientation Magnets!