Engineering Tools for Hardware Design

Accurate, deterministic calculators for common pre-selection and prototyping tasks. All calculations run in your browser — your data never leaves your device.

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Resistor Color Code Calculator

Decode 4, 5, and 6-band resistors and see tolerance ranges at a glance.

PoE / Field-Power Planner

Calculate delivered power and voltage drop across Ethernet cables for different PoE classes.

I²C Pull-Up & Rise-Time

Determine optimal pull-up resistor values for I²C buses based on capacitance and speed.

PCB Trace & Via Calculator

Calculate trace widths, current capacity, and via resistance using IPC-2221 standards.

SpotlightComing soon

findmyboard.ai

AI board discovery

Find the perfect board for your project across 3000+ platforms with guided filters and AI-powered search.

Differential-Pair Skew Planner

Match trace lengths for high-speed differential pairs and calculate propagation delays.

SOM vs SBC Decision Assistant

Get data-driven recommendations on choosing between a System-on-Module or Single-Board Computer.

FPGA Finder

Explore FPGAs with advanced filtering, lifecycle insights, and table or card views.

Why semiconductor.tools?

🔒 Privacy First

All calculations run locally in your browser. No data is sent to any server.

📐 Standards-Based

Uses IEEE, IPC, and TI formulas with full transparency and citations.

📥 Export Ready

Download your results as PDF, CSV, or JSON for documentation and sharing.