# WS2812B-V5

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

WS2812B-V5 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.


::adom-states{src="/adom/ws2812b-v5/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD | power_in | Power supply pin; the maximum rating for VDD is +3.7 to +5.3 V (TA=25°C, VSS=0V), and electrical parameters are specified at VDD=5V. |
| 2 | DOUT | output | Control data signal output that forwards the reshaped data stream to the next cascaded pixel. |
| 3 | VSS | power_in | Ground pin serving as both signal ground and power ground (VSS=0V reference for the ratings). |
| 4 | DIN | input | Control data signal input; the input high level is 0.63VDD to VDD+0.7V and the input low level is -0.3V to 0.7V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `WS2812B-V5`
- Footprint: `LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm`
- 3D model: SMD5050-4P (KiCad packages3D, STEP)
- 3D model files: `ws2812b-v5-etched.step` / `ws2812b-v5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ws2812b-v5.step` / `ws2812b-v5.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Worldsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918861252583424) (7 pp, sha256 `57bc9bd11fd2cae6`, retrieved 2026-10-07, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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](docs/ws2812b-v5-datasheet.pdf)