# Vdd Power Vdd ## Breadboard Footprint ![](Breadboard.png) ## Schematic Symbol ![](Schematic.png) ## Description The nominal power rail. Vdd is an active power supply not just a label. ## SPICE Models a power source at nominal 5V Vdd. > Roadmap: support parametric voltage levels. ## OpenVBB Models a power source at nominal 5V Vdd. ## Properties | Property | Description | | :--- | :--- | ## Useage ### OpenVBB / SPICE ![](Useage.png)