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3.5 × 2.8 mm 4 pins top-emitting

GL3528RGB01H

3528 · smd · Guiguang GL01H (unnamed IC) · Guiguang Light

1-wire RGB 4.5–5.5 V active

Also sold as GL3528RGB01H-T, GL3528RGB01H-W, Guiguang 3528

At a glance

Colour
RGB8 bits per channel
Data
1-wiretimed pulses on one line
Supply
4.5–5.5 Vno backup data line
Size
3.5 × 2.8 × 1.9 mm4 pins · top
Max current
—per-channel not recorded
PWM
1.5 kHzreset 180 µs
Library support
FastLED WLED Adafruit

Guiguang’s 3.5 x 2.8 mm pixel, same pad positions and pin order as its 5050.

Datasheets disagree: the dimension drawing labels both left pads “1” (VDD and DOUT), while the pin table on the next page numbers DOUT 2. The sheet’s chip supply range is 4-5.3 V (the 5050 sheet says 4.5-5.5 V). The -W sheet is identical to the -T one apart from the lens description. LCSC stock: -T 10,170, -W 6,680.

Variants

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

Order codeFaceLensWhite PinsSiliconStatusFirst seenDatasheet
GL3528RGB01H-T — clear — 4 — active 2023-05 PDF
Transparent lens. LCSC stock 10,170 on 2026-10-15.
GL3528RGB01H-W — frosted — 4 — active 2023-05 PDFPDF ↗
Frosted lens. LCSC stock 6,680 on 2026-10-15.

Pinout

GL3528RGB01H-TGL3528RGB01H-W
GL3528RGB01H 3528 package, top and side viewPin 1 is ringed. pin 1 VDD (power), pin 2 DOUT (data out), pin 3 GND (ground), pin 4 DIN (data in).11 VDDpower22 DOUTdata out33 GNDground44 DINdata in3.5 mm2.8 mmtop view1.9 mmside view
  • Power
  • Data
  • Ground
  • Pin 1
  • Cut corner

Outline and pin positions checked against the manufacturer datasheet (C51933365 GL3528RGB01H-T spec p3 (appearance and size) and p4 (pin table)). Numbers printed beside the pads: 1 VDD top-left, 2 DOUT bottom-left (printed '1' in the drawing, a typo), 3 GND bottom-right, 4 DIN top-right; counter-clockwise from the top-left. Pad sizes and spacing read from the sheet's bottom view (0.72 mm wide, 0.70 mm tall, 1.50 mm outer span) and the land pattern (0.90 x 0.75 mm pads, 1.80 mm apart); approximate. What this means.

  1. 1 VDD power
  2. 2 DOUT data out
  3. 3 GND ground
  4. 4 DIN data in

Protocol — Guiguang GL01H (unnamed IC)

Timings shown from datasheet.

Guiguang GL01H (unnamed IC) bit timingGuiguang GL01H (unnamed IC) bit timing: a zero bit is 300 nanoseconds high then 900 low; a one bit is 600 high then 600 low; reset 180 microseconds low1 · Bit encoding, to scaleDINhighlowbit 0 period 1200 nsbit 1 period 1200 nsT0H 300 nsT1H 600 nsT0L 900 nsT1L 600 ns"0" bit"1" bit020040060080010001200140016001800200022002400time, 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 × ~1200 ns ≈ 28.8 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 ≥ 180 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 300 / T0L 900 · T1H 600 / T1L 600 ns · period 1200 ns · reset 180 µs source: datasheet

Compatibility

  • electrically similar SK6812

    Inferred from the printed numbers only; no Guiguang sheet names SK6812 or any IC. The 2015 OPSCO SK6812 table (T0H 300, T0L 900, T1H 600, T1L 600 ns +/-150) sits inside all four GL01H windows, as does the 5050 pin order. But the GL sheets send RGB (SK6812: GRB), reset after 180 us (SK6812: 80 us in 2015, above 200 us in 2025) and a 4.5-5.5 V supply. A GRB controller will swap red and green. source ↗

  • electrically similar Guiguang GL2121 (unnamed IC)

    The GL2121 sheet prints a different timing table (T0H 250 typ / 300 max, T0L 1000 typ, T1H 620-1000, T1L 400 typ ns, reset 80 us) and a 3.5-5.5 V supply; see that protocol. source ↗

  • electrically similar of this Guiguang GL2121 (unnamed IC)

    Same maker, same RGB order and 800 kHz rate, but a different timing table from the 5050 / 3528 / 6028 sheets (T1H 850 against 600 ns typical, T0L 1000 against 900, reset 80 against 180 us) and a lower-voltage supply range.

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.

  • 2023-05 datasheet revision Guiguang GL3528RGB01H-T specification, release date May 2023 on the cover ↗ month
  • 2023-05 datasheet revision Guiguang GL5050RGB01H-T specification, release date (发布日期) May 2023 on the cover ↗ month

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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