2.3-inch Blue Alphanumeric LED Displays

Ultrabright blue 17-segment LED displays with dual decimal points.
Not currently available

Big, ultrabright and beautiful 17-segment alphanumeric displays with blue segments and 2.3" character height! These are the same displays we use in the Alpha Clock Five, Blue Edition.

The segments light up in ultrabright blue. Also available in ultrabright red and ultrabright white.

These are seriously bright when driven at full current, and can be placed behind a darkened window for even higher contrast viewing. A total of 54 LED elements are inside the matrix to drive the segments and dual decimal points.

The internal wiring configuration is common anode. The decimal points contain a single LED element. The six "short" segments each contain two LED elements in series. The ten "long" segments each contain two LED elements in series, twice in parallel. To drive the display, we recommend using two constant-current LED driver ICs, one of which is configured for roughly 25 mA (for the six short segments and decimal), and one of which is configured for roughly 50 mA (for the long segments).


  • LED Color: Ultrabright Blue
  • Package: 2.3" Alphanumeric, 20 pin
  • Wiring configuration: Common Anode
  • Lens type: Diffused (milky-white when not lit)
  • Face background color: Black
  • DC forward current (per LED element): 30 mA Max
  • Forward voltage (per LED element): 2.7 V typical, 4.2 V Max
  • Lead-free (RoHS compliant)
  • Manufacturer: Betlux Electronics
  • Manufacturer part number: BL-S230B-13B-11
  • Datasheet (PDF)

Lead Free
These 17-segment alphanumeric displays are RoHS compliant (lead free). Working with these parts, you'll find that everything works well with either regular or lead-free solder-- whichever you care to use.

Suggested accessories:

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