Earlier this week,^( , which previously was exclusively available with new 2018 iPad Pro purchases. Apple sells this faster charger for $39 in Canada.
If you were wondering what’s inside this new 18W USB-C AC adapter,^( has posted their full teardown of the unit–which actually is from their 2018 iPad Pro:
On the bottom, it states the model number A1695, and the specification of the power input and output. There is also a serial number. The one we have is for China market. Physically it is compatible with US socket plugs.
According to ChargerLab, this new Apple 18W USB-C charger “is the hardest to open among all Apple USB-C chargers we [tore] down before,” stating they “spent hours with hammer and rotary tools to finally cut it open.”
The USB-C socket itself is plastic, but it’s re-enforced by a metal frame for strength and durability.
Inside, we see an extremely compact unit with a transformer from Sumida, along with a USB Power Delivery protocol controller chip—the Cypress CYPD313—apparently custom made for Apple.
Below are other components found within the USB-C AC adapter:
- AON 7428 MOSFET by Alpha & Omega Semiconductor
- 2 x 400V 15uF electrolytic capacitor by Rubycon
- 16V 560uF polymer capacitor for output from Nihonkakoh
- PI SC1263K6 custom power management chip
- Infineon BSZ096N10LS5 MOSFET
With limited space in its relatively small footprint, Apple’s USB-C power adapter is “very well designed and built,” explains ChargerLab, adding despite having limited space, the charger is efficiently constructed, with components scattered across the printed circuit board (PCB).
Previously,^( in early 2019, in a schedule that now appears to be sooner than originally expected.