Pd injector smd

PD-Injector-SMD – PCBWay turnkey integration

This repository provides a PCBWay turnkey-manufacturing integration for the open-hardware project tinyledmatrix/PD-Injector-SMD as a USB-C Power/Data injector for KVM-over-IP and USB-gadget deployments.

Upstream project: https://github.com/tinyledmatrix/PD-Injector-SMD

Upstream license: CERN Open Hardware Licence v1.2.

Purpose

The board combines:

• USB-C power / PD path from a power supply
• USB 2.0 D+/D- from a separate host PC
• a single USB-C plug toward the target SBC

This is useful when a board exposes USB gadget/device mode on the same USB-C connector that is also used for power.

The SMD fork intentionally uses normal USB-C connectors rather than 0.6 mm PCB-edge receptacles. The upstream KiCad board is a 2-layer, 1.6 mm FR-4 design with 35 µm / 1 oz copper.

Important current limit

The upstream output plug footprint is for C-UTC009-0C / UTC009-C12. Its manufacturer drawing specifies 3 A minimum current rating.

Treat this integration as a 3 A maximum connector-current design unless the output connector and PCB are redesigned and requalified.

For ROCK 5B use, suitability still has to be validated against the actual negotiated USB-PD voltage/current and hardware path. It is not a 5 V / 5 A Raspberry Pi 5 power-path design.

PCBWay target

Order as a turnkey PCBA:

• 2 layers
• FR-4
• 1.6 mm
• 1 oz / 35 µm finished copper
• ENIG surface finish
• green solder mask
• white silkscreen
• assembly: Turnkey
• assembly side: Top
• production batch: 20 fully assembled boards (ordered 2026-08-25)
• Chinese substitutes: No
• PCBWay may panelize for assembly; request depanelized individual boards

See docs/PCBWAY_ORDER_CHECKLIST.md.

Production files

Run:

./tools/export-pcbway-production.sh

The script clones the upstream source, verifies the expected upstream file hashes, and creates:

• Gerber ZIP
• Excellon drill files
• PCBWay centroid / CPL CSV
• PCBWay BOM CSV
• assembly notes
• schematic and upstream license copies

The generated directory is suitable for uploading to PCBWay for engineering review and quotation.

Production connector selection

The USB-C connector footprints are mechanically critical. For the PCBWay production batch ordered on 2026-08-25, the approved connector selections are:

• USB-C1 / USB-C2: GT-USB-7010AN
• P1: HRO TYPE-C-31-G-10, LCSC C5370430

P1 keeps the existing USB_C_Plug_UTC009-C12 PCB footprint. The HRO part was mechanically cross-checked against the existing land pattern before payment: 12 contacts at 0.50 mm pitch, 5.50 mm contact span, 9.10 mm outer shell-pad span, matching shell-tab locations, and the same 8.25 mm / 13.18 mm connector body class. This is a production substitution, not a PCB footprint redesign.

The 3 A maximum connector-current design limit remains unchanged.

See docs/PCBWAY_PRODUCTION_2026-08-25.md for the ordered configuration.

No automatic substitutions

The USB-C connector footprints are mechanically critical. Do not accept connector substitutions without explicit approval after PCBWay has checked the land pattern, shell-tab geometry, height and orientation.

Status

First PCBWay turnkey production batch ordered on 2026-08-25: 20 assembled boards.

PCB and PCBA passed PCBWay review before payment. Hardware validation will be added after the assembled boards arrive and are tested.

Manufacturing integration only. This does not certify USB-IF compliance, PD compliance, EMC compliance, or safety certification.

Preview

PCB

Case preview

The enclosure is still a prototype and has not yet been physically test-fitted against the PCBWay production board.

PCB layout

Enclosure prototype

A parametric two-piece enclosure prototype is maintained in case/.

The current enclosure is v0.1 and not yet physically validated against a manufactured PCB. STEP/STL sources and a neutral 3MF with both print parts are included. No printer-specific G-code is tracked.

Before treating the enclosure as validated, update the assembled-board 3D model with the actual production connectors and perform a digital fit check, followed by a physical test with a PCBWay production board.

Repository scope

This repository intentionally keeps the manufacturing integration separate from the VyOS ARM64 board builder. It can be used independently for ROCK 5B, Raspberry Pi and other USB-gadget targets, subject to the documented electrical limits.

The upstream CAD design is not silently modified by the export workflow. Instead, the build helper verifies the expected upstream source hashes before producing manufacturing files. This makes upstream changes visible before a new batch is ordered.