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5.0 × 5.0 mm 4 pins top-emitting

XL-5050RGBC-2812B

5050 · smd · Xinglight 2812B (5 V, 12 mA, 0.295/0.595 us table) · Xinglight

1-wire RGB 3.5–5.5 V active

Also sold as XL-5050RGBC-WS2812B, Xinglight WS2812B compatible, XL-5050RGBC-2812B

At a glance

Colour
RGB8 bits per channel
Data
1-wiretimed pulses on one line
Supply
3.5–5.5 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

Replaces the earlier datasheet-less entry for this part number (protocol ws2812c, no pinout, SKU null). The earlier protocol choice (ws2812c) had no evidence behind it; the Xinglight sheets print no WS2812C figure. Pin order and the cut corner at pin 3 match the WorldSemi WS2812B 5050 package.

Datasheets disagree (base sheet C2843785): title and section headings say WS2812B, while the timing table is the symmetric 0.295/0.595/0.595/0.295 us set with reset 80 us; the prose note under it says 0 code 200-410 ns, 1 code 640-1000 ns, reset minimum 100 us. See the protocol page.

The RGBW-HM SKU (C48586675): the sheet title says RGBW but every parameter (24-bit GRB frame, 3 x 12 mA, pins) is that of the RGB sheet. Whether the fourth die exists is not stated, so the SKU is recorded as 3-channel.

Variants

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

Order codeFaceLensWhite PinsSiliconStatusFirst seenDatasheet
XL-5050RGBC-2812B white clear — 4 — active 2025-09-08 PDF
The original catalogue variant, now with its LCSC SKU. ESD 2000 V HBM. Stock is the most of any Xinglight addressable SKU. LCSC stock 559,520 on 2026-10-15.
XL-5050RGBC-2812B-HM — — — 4 — active 2025-09-08 PDFPDF ↗
HM suffix: the sheet prints the same timing numbers and pin table as the base, with ESD 3000 V HBM and cycle min 0.9 us (base 0.89 us). What HM stands for is not stated. LCSC stock 12,480 on 2026-10-15.
XL-5050RGBC-2812B-S — — — 4 — active 2025-09-08 PDFPDF ↗
S suffix: timing table rounded to 0.20/0.3/0.4, 0.55/0.6/1.2, 0.55/0.6/1.2, 0.2/0.3/0.4 us, cycle min 0.9 us; same 12 mA and pins. What S stands for is not stated. LCSC stock 624,160 on 2026-10-15.
XL-5050RGBC-XS2812B — — — 4 — active 2025-09-08 PDFPDF ↗
XS2812B naming: the sheet is byte-for-byte the same numbers as the base sheet (title XL-5050RGBC-XS2812B); XS appears to be a name for the same part. LCSC stock 595 on 2026-10-15.
XL-5050RGBW-2812B-HM — — — 4 — active 2025-09-08 PDFPDF ↗
Named RGBW but the sheet prints a 24-bit GRB frame, the same pins and timing as the RGB HM sheet and no white channel; see the part notes. LCSC stock 1,320 on 2026-10-15.

Pinout

XL-5050RGBC-2812BXL-5050RGBC-2812B-HMXL-5050RGBC-2812B-SXL-5050RGBC-XS2812BXL-5050RGBW-2812B-HM
XL-5050RGBC-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 (C2843785 XL-5050RGBC-WS2812B p11 (outline, solder pattern, labelled top view); the -S, -HM, -XS and RGBW-HM sheets p11 show the same labels). Counter-clockwise from the top-left (VDD, DO, GND, DI); the cut corner is at pin 3 (GND), as on the WS2812B. Pad size 1.0 x 1.0 mm and 5.4 mm overall pad span read from the bottom view; the recommended solder pad is 1.3 x 1.3 mm. What this means.

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

Protocol — Xinglight 2812B (5 V, 12 mA, 0.295/0.595 us table)

Timings shown from datasheet.

Xinglight 2812B (5 V, 12 mA, 0.295/0.595 us table) bit timingXinglight 2812B (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: 24 bits, most-significant bit firstDIN170110010007100110101700101100bitch 1 · 8 bitsch 2 · 8 bitsch 3 · 8 bitsChannel order not recorded for this protocol · frame = 24 × ~890 ns ≈ 21.4 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 24 bits, re-shapes the signal and sends the rest out on DOUT;LED 2 keeps the next 24, 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

Compatibility

  • protocol compatible WS2812B

    Only the sheet title ("XL-5050RGBC-WS2812B", section heading "WS2812b") claims it; no sheet says "compatible". Its table timing (T0H 0.295, T0L 0.595, T1H 0.595, T1L 0.295 us) differs from the WS2812B sheet, but its own prose note says the IC reads a high of 200-410 ns as 0 and 640-1000 ns as 1, which overlaps the WS2812B windows. Same 5050 pin order as the WS2812B (1 VDD, 2 DOUT, 3 GND, 4 DIN, cut corner at pin 3). source ↗

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.

  • 2025-09-08 estimate PDF CreationDate metadata of Xinglight sheet XL-5050RGBC-2812B (LCSC C2843785); 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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