Components #

Breadpad provides a comprehensive library of electronic components for circuit design and SPICE simulation. Each component is carefully modeled to provide accurate results while maintaining ease of use.

Available Components #

Passive Components #

• Resistor - Fixed resistance with temperature coefficients
• Capacitor - Energy storage with dielectric modeling
• Inductor - Magnetic energy storage with parasitics

Semiconductor Devices #

• Diode - PN junction with full SPICE parameters
• Transistor - BJT, MOSFET, JFET support

Integrated Circuits #

• Chip - Custom ICs from 8-48 pins with subcircuits

Sources & Connections #

• Voltage Source - DC, AC, PWM, and modulated signals
• Wire - Realistic wire modeling with resistance
• Transmission Line - Distributed RLC for high-frequency

Component Features #

Standard Features (Free) #

• Basic component placement and editing
• DC analysis support
• Simple parameter adjustment
• Visual breadboard representation

Premium Features #

• Temperature coefficients (TC1, TC2)
• Manufacturing tolerance for Monte Carlo
• Advanced source types (PWM, FM, AM)
• Parasitic element modeling
• Custom IC subcircuit import

SPICE Accuracy #

All components generate industry-standard SPICE netlists compatible with:

• ngspice (used by Breadpad)
• LTspice
• PSpice
• Most SPICE3-compatible simulators

Getting Started #

1. Select a component from the toolbox
2. Place on breadboard with tap or click
3. Double-tap to edit parameters
4. Connect with wires to build your circuit
5. Run analysis to see results

Tips for Success #

• Start simple and add complexity gradually
• Use appropriate wire colors for clarity
• Check component orientations (especially diodes, transistors)
• Add bypass capacitors for ICs
• Consider tolerances for real-world accuracy