footprinter (tscircuit)ECADConfidence: Medium

Two earlier PRs for a horizontal TO-220 footprint got the geometry wrong, one omitting the mounting hole and courtyard and one using a plated mounting hole, so the library shipped incorrect footprints until this correction.

Impact Analysis

Persona

Electrical Engineer

Team Size Impact

5x Multiplier

Prototype Delay

3 Days

Est. Annual Cost

$30,000

1 user · 1 month240 min
Rest of team960 min
Rest of year13,200 min

monthly_minutes × 12 × team_multiplier ÷ 60 × $75/hr = $30k/yr

$75/hr assumed rate.

Annual team-minutes decomposed from the reported monthly inputs.

Evidence & Sources

1 Sources

tscircuit/footprinter PR #968: Add horizontal TO-220-3 with non-plated mounting hole

github.com

→

Analyst Notes

From the Grok pain-radar digest, Oct 26 2026 (8:41 AM to 11:41 AM ET digests plus Haitch morning edition). Verified live 2026-10-26: issue/PR/thread read; title and state confirmed.