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5.0 × 5.0 mm 4 pins top-emitting

XL-5050YWWWC-2812B-12V

5050 · smd · Xinglight 2812B yellow/white 12 V 5050 (9-14 V, 8.5 mA) · Xinglight

1-wire W 9–14 V active

Also sold as XL-5050YWWWC-WS2812B-12V

At a glance

Colour
W8 bits per channel
Data
1-wiretimed pulses on one line
Supply
9–14 Vno backup data line
Size
5.0 × 5.0 × 1.6 mm4 pins · top
Max current
25.5 mA8.5 mA per channel
PWM
—reset 200 µs
Library support
FastLED WLED Adafruit

12 V single-point-control pixel in the 5050 package, with the same 4-pin set as the 5 V WS2812B-style parts: do not apply 5 V logic-level assumptions from the 5 V Xinglight parts (VIH 2.3 V, VIL 1.9 V here).

Variants

One row per orderable SKU. Everything not listed is inherited from the part above.

Order codeFaceLensWhite PinsSiliconStatusFirst seenDatasheet
XL-5050YWWWC-2812B-12V — — — 4 — active 2025-12-30 PDF
Not in the original scope list; found by a keyword search of the LCSC sweep. LCSC stock 830 on 2026-10-15.

Pinout

XL-5050YWWWC-2812B-12V
XL-5050YWWWC-2812B-12V 5050 package, top and side viewPin 1 is ringed. pin 1 VDD (power), pin 2 DO (data out), pin 3 GND (ground), pin 4 DI (data in).11 VDDpower22 DOdata out33 GNDground44 DIdata in5.4 mm overall5.0 mmtop view1.6 mmside view
  • Power
  • Data
  • Ground
  • Pin 1
  • Cut corner

Outline and pin positions checked against the manufacturer datasheet (C51900945 XL-5050YWWWC-WS2812B-12V p10 (outline, labelled diagram)). Counter-clockwise from the bottom-right (VDD, DOUT, GND, DIN); GND sits at the cut corner top-left. The package is 5.4 mm across with two extra unnumbered side pads that are not drawn here. What this means.

  1. 1 VDD power
  2. 2 DO data out
  3. 3 GND ground
  4. 4 DI data in

Protocol — Xinglight 2812B yellow/white 12 V 5050 (9-14 V, 8.5 mA)

Timings shown from datasheet.

Xinglight 2812B yellow/white 12 V 5050 (9-14 V, 8.5 mA) bit timingXinglight 2812B yellow/white 12 V 5050 (9-14 V, 8.5 mA) bit timing: a zero bit is 300 nanoseconds high then 900 low; a one bit is 900 high then 300 low; reset 200 microseconds low1 · Bit encoding, to scaleDINhighlowbit 0 period 1200 nsbit 1 period 1200 nsT0H 300 nsT1H 900 nsT0L 900 nsT1L 300 ns"0" bit"1" bit020040060080010001200140016001800200022002400time, ns2 · One frame: 8 bits, most-significant bit firstDIN1701100100bitch 1 · 8 bitsChannel order not recorded for this protocol · frame = 8 × ~1200 ns ≈ 9.6 µs · example data, first bits 1 0 1 …3 · RESET / latchlast bits of frame 1first bits of frame 2LEDs latch the data they receivedRESET: DIN low ≥ 200 µs (not to scale)4 · Cascade: each DOUT feeds the next DINMCULED 1DINDOUTLED 2DINDOUTLED NDINDOUTLED 1 keeps the first 8 bits, re-shapes the signal and sends the rest out on DOUT;LED 2 keeps the next 8, and so on. The last LED's DOUT is left unconnected.
T0H 300 / T0L 900 · T1H 900 / T1L 300 ns · period 1200 ns · reset 200 µs source: datasheet

Dating evidence

Nobody announces these parts, so this records what we can actually cite rather than a release date. Library support proves only that the part existed by that date.

  • 2025-12-30 estimate PDF CreationDate metadata of Xinglight sheet XL-5050YWWWC-2812B-12V (LCSC C51900945); the sheet has no revision table, so this is only the date the PDF file was produced ↗ day

Where to buy

Stub data — a few rows so purchase links can grow later. Prices are not tracked.

Similar parts

Same protocol or package first, then the same data scheme and colour channels.

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