iPhone 18 Pro Max — A3473 sample
A source-linked component and supplier map for the A3473 256 GB sample. It covers selected A20 Pro, N1, cellular, RF and power-management records, with explicit variant limits and unknown manufacturing locations.
iPhone 18 Pro Max: source-linked components
Sources reviewed:
This is a limited, independently compiled map of the A3473 256 GB sample examined by TechInsights, not a complete iPhone 18 bill of materials. Apple announced the Pro range on September 9, 2026, with retail availability from September 18. The rows below separate Apple’s chip design from foundry work and identify only selected components supported by the linked sources.
| Company / component | Documented relationship | Model / coverage | Evidence status | Sources |
|---|---|---|---|---|
| Apple — A20 Pro — chip design | Apple-designed application processor | iPhone 18 Pro platform | Manufacturer / process evidence | [1][3] |
| TSMC — A20 Pro — N2 foundry | N2 foundry process; distinct from Apple’s design role | Analyzed A20 Pro package; specific fabrication plant unknown | Manufacturer / process evidence | [3] |
| Apple — N1 wireless module 339M00479 | Wireless networking module identified in the sample | A3473 sample | Preliminary teardown | [2] |
| Qualcomm — SDX80M / Snapdragon X80 | 5G modem identified on the board | A3473 sample; do not generalize to every regional variant | Preliminary teardown | [2][4] |
| Qualcomm — SDR875 | RF transceiver identified in the sample | A3473 sample | Preliminary teardown | [2] |
| Broadcom — AFEM-8257 / AFEM-8267 | RF front-end modules identified in the sample | A3473 sample | Preliminary teardown | [2] |
| Skyworks — SKY58480-14 | RF front-end module identified in the sample | A3473 sample | Preliminary teardown | [2] |
| Qorvo — QM6308A | RF front-end module identified in the sample | A3473 sample | Preliminary teardown | [2] |
| Broadcom — BCM59367 | Wireless charging receiver identified in the sample | A3473 sample | Preliminary teardown | [2] |
| Texas Instruments — CP3201A0R4 / TPS658A0M | Power-management ICs identified in the sample | A3473 sample | Preliminary teardown | [2] |
| STMicroelectronics — STM1A3IP | Power-management IC identified in the sample | A3473 sample | Preliminary teardown | [2] |
| NXP — NFC controller, marked 45V306 | NFC controller / secure element; board marking 45V306, full catalog identity unconfirmed | A3473 sample | Preliminary teardown | [2] |
Limitations
- Variant boundary: TechInsights found Qualcomm SDX80M in A3473. iFixit independently reports Qualcomm in the US Pro Max, while Apple’s platform announcement describes C2. These observations do not establish the modem in every iPhone 18 Pro or Pro Max.
- Display, camera, memory and battery suppliers are not established by this reviewed source set and are deliberately omitted from supplier assignments. The NXP controller’s exact part identifier is also left unconfirmed.
- A company’s headquarters is not the fabrication or assembly location. No specific chip fabrication plant or final assembly site is assigned; blank location fields render as Unknown in the geographic view.
- The map records component / organization relationships, not purchasing volumes, supplier market share or an exhaustive count. The A20 Pro designer and foundry are separate roles for one chip, not two physical chips.
- TechInsights labels its board analysis preliminary. Findings may change with later analysis or other devices; source dates and our review date are separate. This English evidence set is not a translated supplier list for other locales.
Sources
- Apple: iPhone 18 Pro launch and specifications — 2026-09-09
- TechInsights: preliminary A3473 teardown — 2026-09-18
- TechInsights: A20 Pro process analysis — 2026-09-22
- iFixit: Pro / Pro Max teardown and US modem difference — 2026-09-20
The interactive map below is limited to these source-linked component records. Rectangle sizes and flow widths count records, not component cost, procurement volume or market share. Locations remain unknown. Read the original sources for sample details.
Selected component / organization records • No procurement-volume or market-share data
iPhone 18 Pro Max — limited verified sample
Limited verified sample: A3473, 256 GB | Evidence reviewed 2026-10-15 | Manufacturing locations unknown
Frequently Asked Questions
What modem is in the iPhone 18 Pro Max A3473?
TechInsights identifies a Qualcomm SDX80M / Snapdragon X80 modem with an SDR875 RF transceiver in its A3473 256 GB sample. iFixit reports a US Pro Max exception while Apple describes C2 at platform level. Match the exact regional variant before applying this finding to another device.
What chip is in the iPhone 18 Pro Max?
Apple identifies A20 Pro as the application processor. TechInsights links A20 Pro to TSMC’s N2 process. Apple’s design role and TSMC’s foundry process are distinct; neither statement identifies a specific fabrication or final assembly plant.
Who supplies components for the iPhone 18 Pro Max?
The selected sample records link Apple, TSMC, Qualcomm, Broadcom, Skyworks, Qorvo, Texas Instruments, STMicroelectronics and NXP to the roles in the table. This is a sourced subset for A3473, not a complete supplier roster or a statement about all devices.
Does every iPhone 18 Pro use the Qualcomm X80 modem?
That conclusion is not supported. TechInsights identifies SDX80M / X80 in its A3473 sample; iFixit reports a US Pro Max exception, while Apple describes C2 for the platform. Check the exact regional model and teardown before transferring a modem claim.
Does TSMC’s N2 process identify the factory?
No. TechInsights identifies the foundry process for A20 Pro. That does not by itself identify a fabrication plant, packaging site or final assembly location. Those fields remain unknown here.
Why are display, camera, memory and battery suppliers missing?
The reviewed sources do not establish those assignments for this sample. We leave them unassigned rather than copy suppliers from another iPhone model. The map is a starting point for further evidence, not a complete teardown.