Documentation
Humanity's Last Component Library is documented in short, focused pages. Use the table of contents on the left (or above, on small screens) to jump in.
- Motivation Why this exists as a free offering from JD Brinton Consulting, Inc.
- The problem Why most passive libraries fail IPC expectations, ship mistakes, and burn design time.
- Challenges What we had to figure out—Altium formats, fidelity, and running it all in the browser.
- How it works Pure Python, auditable math, and a browser runtime—no install, no server-side build for your data.
- Component selection advice Practical guidance for choosing resistor, capacitor, and inductor families in HLCL.
Website revision history
This build is v0.2.0. Development versions include changes planned for the next release.
v0.2.0
Released- Expand the full default library to 59,065 component entries, 324 footprints (including L/N/M density variants), and 27 families.
- Add 10 passive families: Murata GCD and KRM; KEMET X7R, Open Mode, and ESD C0G; TDK C; and Vishay RCS, RCP, MC Precision, and MC AT.
- Extend Panasonic ERA-A with 0402 AEB/ARB parts, Samsung CL with selected automotive parts, and Yageo AC with 1210 parts.
- Add manufacturer-recommended land patterns and dedicated terminal geometry for RCP and KRM, plus 2512 and KRM55 package selections.
- Correct Panasonic ERA-V/K/P resistance codes, including ERA-2VEB9100X for 910 Ω and R notation below 100 Ω. This fixes 297 generated part numbers while preserving ERA-A numbering.
- Correct 3D body height and offset units in generated Altium footprint libraries so component heights match the embedded STEP models.
- Import previously exported configuration JSON from Configure → Presets → Import JSON, with validation before applying settings.
- Add website revision history and a version link in the footer of every page.
- Track the website version in builds and document promotion from dev to production through versioned releases.
v0.1.0
Released- Original website, including documentation, the browser configurator, and Altium library generation. This version number was assigned retrospectively.