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5.0 × 5.0 mm 4 pins top-emitting

XL-5050WYWWC-2812B

5050 · smd · Xinglight 2812B white/yellow (3.5-7.5 V, 12 mA, 0.295/0.595 us table) · Xinglight

1-wire W 3.5–7.5 V active

Also sold as XL-5050WYWWC-WS2812B

At a glance

Colour
W8 bits per channel
Data
1-wiretimed pulses on one line
Supply
3.5–7.5 Vno backup data line
Size
5.0 × 5.0 × 1.6 mm4 pins · top
Max current
36 mA12 mA per channel
PWM
4 kHzreset 80 µs
Library support
FastLED WLED Adafruit

This part was not in the original scope file; it was found by a keyword search of the LCSC sweep for Xinglight addressable SKUs. The supply limit 3.5-7.5 V is printed in the absolute maximum table.

Variants

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

Order codeFaceLensWhite PinsSiliconStatusFirst seenDatasheet
XL-5050WYWWC-2812B — — — 4 — active 2025-10-15 PDF
Yellow / white / warm-white pixel; the sheet gives the colour order as “W Y WW”. Not in the original scope list; found by searching LCSC for XL- parts. LCSC stock 920 on 2026-10-15.

Pinout

XL-5050WYWWC-2812B
XL-5050WYWWC-2812B 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 (C51900944 XL-5050WYWWC-WS2812B p9 (outline) + pin diagram). Counter-clockwise from the bottom-right (VDD, DOUT, GND, DIN): the labelled diagram puts GND top-left (at the cut corner), DOUT top-right, DIN bottom-left, VDD bottom-right. The package is 5.4 mm across with two extra unnumbered side pads ("dummy pads need no solder") 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 white/yellow (3.5-7.5 V, 12 mA, 0.295/0.595 us table)

Timings shown from datasheet.

Xinglight 2812B white/yellow (3.5-7.5 V, 12 mA, 0.295/0.595 us table) bit timingXinglight 2812B white/yellow (3.5-7.5 V, 12 mA, 0.295/0.595 us table) bit timing: a zero bit is 295 nanoseconds high then 595 low; a one bit is 595 high then 295 low; reset 80 microseconds low1 · Bit encoding, to scaleDINhighlowbit 0 period 890 nsbit 1 period 890 nsT0H 295 nsT1H 595 nsT0L 595 nsT1L 295 ns"0" bit"1" bit02004006008001000120014001600time, ns2 · One frame: 8 bits, most-significant bit firstDIN1701100100bitch 1 · 8 bitsChannel order not recorded for this protocol · frame = 8 × ~890 ns ≈ 7.1 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 ≥ 80 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 295 / T0L 595 · T1H 595 / T1L 295 ns · period 890 ns · reset 80 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.

  • 2025-10-15 estimate PDF CreationDate metadata of Xinglight sheet XL-5050WYWWC-2812B (LCSC C51900944); the sheet has no revision table, so this is only the date the PDF file was produced ↗ day
  • 2025-10-15 estimate PDF CreationDate metadata of Xinglight sheet XL-3535UWC-2812B (LCSC C51900947); 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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