LED Resistor Circuit Diagram Template

Edit a basic LED circuit with a DC source, current-limiting resistor, polarized LED, and return path.

What the template contains

• DC voltage source
• Current-limiting resistor
• LED with anode and cathode
• Return or ground net

Best used for

• Learning LED polarity and current limiting
• Testing Ohm’s-law assumptions
• Creating a simple breadboard or through-hole PCB realization

Checks before issue

• Use the selected LED forward-voltage range rather than a color-only assumption.
• Calculate worst-case current and resistor dissipation across supply tolerance.
• Observe polarity and component power ratings.

Engineering boundary

The built-in LED model is simplified. Verify the chosen part against its datasheet and physical measurements before relying on brightness or thermal predictions.

Open this template in the editor. Confirm the electrical design, ratings, terminals, protection, and applicable standards before construction.