Electrical

Choose an AWG wire size from current, one-way length, voltage, voltage drop limit, material, and ampacity settings.

Find a DC fuse size from amps or watts, then check wire amp limit and optional fuse DC voltage rating.

Estimate DC output, ripple, capacitor size, diode reverse voltage, and bridge heat loss for a single-phase bridge rectifier.

Estimate rectifier ripple voltage, capacitor size, or max load current with full-wave, half-wave, mA, uF, and DC checks.

Calculate ideal capacitor charge, capacitance, or voltage with SI units, plus stored electric energy in joules.

Pick a pull-down resistor using current, leakage, capacitance, settling time, and standard E-series values.

Choose an I2C pull-up resistor, check rise time and sink current, and include existing board pull-ups in parallel.

Add resistors in one unbranched series path to find equivalent resistance. Add supply voltage for current, voltage drops, and power.

Calculate thermistor beta in K from two resistance and temperature points, plus nominal resistance and an optional third-point check.

Find crystal load capacitors, nearest E-series values, load error, and tolerance range for a Pierce oscillator circuit.