The SK6812B 4020 is a side-emitting NeoPixel-compatible RGB LED with an integrated driver chip. Unlike standard top-emitting LEDs, these emit light at 90° from the PCB surface, making them ideal for edge-lit designs, light pipes, and compact indicator arrays.

Each 4 × 2 mm SMD package contains red, green, and blue LEDs driven by an internal controller that accepts 24-bit colour data via a single-wire protocol. The ~18 mA constant-current driver ensures consistent colour regardless of voltage variation, with no external resistors required. Power with 5 V DC.

Key Features

• Side-Emitting – Light output at 90° from the PCB, perfect for edge-lit effects
• NeoPixel Compatible – Works with the Adafruit NeoPixel library and any NeoPixel-compatible code
• Chainable – Connect output to input to create strips of any length
• Integrated Driver – 24-bit colour control with ~18 mA constant-current per channel
• Compact 4020 Package – Just 4 × 2 mm, the most space-efficient way to add addressable RGB LEDs
• 5 V DC Operation – No external resistors needed

Ideal For

• Custom side-emitting LED strips and arrays
• Edge-lit signs and displays
• Compact indicator lights on custom PCBs

Package Contents

• 10× SK6812B 4020 side-emitting RGB LEDs (on a strip)

Resources

• NeoPixel Uberguide
• Adafruit NeoPixel Library (GitHub)