| Pin | Name | Function |
|---|---|---|
| 1 | E | Segment E |
| 2 | D | Segment D |
| 3 | COM | Common cathode/anode |
| 4 | C | Segment C |
| 5 | DP | Decimal point |
| 6 | B | Segment B |
| 7 | A | Segment A |
| 8 | COM | Common cathode/anode (duplicate pin) |
| 9 | F | Segment F |
| 10 | G | Segment G |
Summary
Displays a single digit (0-9) using 7 LED segments plus a decimal point. Comes in two types — common cathode and common anode — which wire up oppositely, so check which type you have before wiring. Pin layout below is the widely-used generic 10-pin layout; exact pin order can vary slightly by manufacturer, so double-check against your specific part.
- Type: Common cathode or common anode (check your part)
- Segments: 7 + decimal point
- Forward voltage: ~2V per segment (typical red)
- Current per segment: 10-20mA (needs a current-limiting resistor)