Compact Single-Layer HV Signal PCB

I need a one-layer PCB, smaller than 5 cm × 5 cm, that takes a low-level control signal, divides it with a 4020 counter, passes it through a MOC3041 opto-triac driver, and ultimately triggers a BT41 triac to feed a high-voltage transformer inside a consumer-electronics product. The board must stay strictly within the single-sided, compact footprint while respecting isolation and creepage for the high-voltage section.

Functional expectations
• Stable timing from the 4020
• Proper zero-cross triac firing via the MOC3041
• Reliable BT41 switching with adequate heat dissipation or copper pour where needed
• Clear separation between low-voltage logic and the HV side

I’m flexible on the CAD package—KiCad, Eagle, Altium, or whichever you prefer—as long as the final files are industry-standard.

Deliverables
• Schematic and PCB layout files
• Gerbers, drill files, and pick-and-place data ready for fabrication
• Complete BOM with reference designators and manufacturer part numbers
• Brief design notes highlighting any critical spacing or safety considerations

Acceptance criteria
The board should manufacture without DRC errors, fit within the stated dimensions, and power up on first revision, delivering a clean, jitter-free trigger to the transformer under nominal load.

I’ll review initial drafts quickly and provide prompt feedback so we can lock the design with minimal iterations.