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3.5 × 2.8 mm 4 pins top-emitting

XL-3528RGBC-2812B

3528 · smd · Xinglight 2812B (12 mA, 0.25/0.47 us windows, reset 80 us) · Xinglight

1-wire RGB 3.5–5.5 V active

Also sold as XL-3528RGBC-WS2812B

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
3.5 × 2.8 × 1.9 mm4 pins · top
Max current
36 mA12 mA per channel
PWM
1.5 kHzreset 80 µs
Library support
FastLED WLED Adafruit

Same pin numbering as the Xinglight 3535 XS and 4020 sheets (GND = 1 at the cut corner).

Variants

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

Order codeFaceLensWhite PinsSiliconStatusFirst seenDatasheet
XL-3528RGBC-2812B — — — 4 — active 2025-09-08 PDF
LCSC stock 4,590 on 2026-10-15.
XL-3528RGBC-XS2812B — — — 4 — active 2025-09-08 PDFPDF ↗
XS2812B name; same figures and drawing as the plain sheet. LCSC stock 2,000 on 2026-10-15.
XL-3528RGBW-2812B — — — 4 — active 2025-09-08 PDFPDF ↗
Named RGBW but the sheet prints a 24-bit GRB frame and identical pins/timing; no white channel is described. Recorded as 3-channel. LCSC stock 97,815 on 2026-10-15.

Pinout

XL-3528RGBC-2812BXL-3528RGBC-XS2812BXL-3528RGBW-2812B
XL-3528RGBC-2812B 3528 package, top and side viewPin 1 is ringed. pin 1 GND (ground), pin 2 DI (data in), pin 3 VDD (power), pin 4 DO (data out).11 GNDground22 DIdata in33 VDDpower44 DOdata out3.5 mm2.8 mmtop view1.9 mmside view
  • Ground
  • Data
  • Power
  • Pin 1
  • Cut corner

Outline and pin positions checked against the manufacturer datasheet (C5440693 XL-3528RGBC-WS2812B p11 (outline, solder pattern, labelled top view); the -XS and RGBW sheets p11 show the same). Counter-clockwise from the bottom-right: 1 GND (at the cut corner), 2 DI, 3 VDD, 4 DO. Pad sizes estimated from the drawing (0.7 mm wide, 0.72 mm protruding). What this means.

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

Protocol — Xinglight 2812B (12 mA, 0.25/0.47 us windows, reset 80 us)

Timings shown from datasheet.

Xinglight 2812B (12 mA, 0.25/0.47 us windows, reset 80 us) bit timingXinglight 2812B (12 mA, 0.25/0.47 us windows, reset 80 us) bit timing: a zero bit is 250 nanoseconds high then 1000 low; a one bit is 850 high then 400 low; reset 80 microseconds low1 · Bit encoding, to scaleDINhighlowbit 0 period 1250 nsbit 1 period 1250 nsT0H 250 nsT1H 850 nsT0L 1000 nsT1L 400 ns"0" bit"1" bit02505007501000125015001750200022502500time, 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 × ~1250 ns ≈ 30 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 250 / T0L 1000 · T1H 850 / T1L 400 ns · period 1250 ns · reset 80 µs source: datasheet

Compatibility

  • protocol compatible WS2812B

    Only the sheet title (XL-3528RGBC-WS2812B, "WS2812B functional characteristics") claims it. The windows (0 code high up to 0.47 us, 1 code high from 0.58 us) bracket the WorldSemi WS2812B values (0.4 / 0.8 us), the symmetric typical column does not. 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-3528RGBC-2812B (LCSC C5440693); 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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