component

WS2812B-B

Public Made by Adom

by adom

Worldsemi RGB LEDs(Built-In IC), SMD5050-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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WS2812B-B

Worldsemi · RGB LEDs(Built-In IC) · SMD5050-4P

WS2812B-B from Worldsemi, in a SMD5050-4P. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

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Pinout

Pin Name Type Function
1 VDD power_in Power supply input for the LED and control circuit; the datasheet's absolute maximum power supply voltage range is +3.7~+5.3 V.
2 DOUT output Control data signal output that sends the reshaped data from DIN to the next cascaded pixel.
3 VSS power_in Ground for data and power; the datasheet specifies VSS = 0 V as the reference.
4 DIN input Control data signal input; the datasheet gives VIH min 2.7 V and VIL max 0.7 V, with logic input voltage limits of VDD-0.3 V to VDD+0.7 V.

Key specifications

Parameter Value
Manufacturer Worldsemi
Package SMD5050-4P
Category Optoelectronics
Pins 4

CAD (KiCad official)

  • Symbol: WS2812B-B
  • Footprint: LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm
  • 3D model: SMD5050-4P (KiCad packages3D, STEP)
  • 3D model files: ws2812b-b-etched.step / ws2812b-b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ws2812b-b.step / ws2812b-b.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Worldsemi datasheet (8 pp, sha256 70b853f11ea50ddd, retrieved 2026-10-07, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF