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5.4 × 5.0 mm 4 pins top-emitting

TZ-5050S2RGB-5V-I4-H1

5050 · smd · TZ2812 · TUOZHAN

1-wire RGB 3.5–7.5 V active

Also sold as TZ-5050S2RGB-5V-I4-H1, 5050 Huancai TZ2812

At a glance

Colour
RGB8 bits per channel
Data
1-wiretimed pulses on one line
Supply
3.5–7.5 Vno backup data line
Size
5.4 × 5.0 × 1.5 mm4 pins · top
Max current
—12 mA per channel
PWM
4 kHzreset 80 µs
Library support
FastLED WLED Adafruit

TUOZHAN’s WS2812B-shaped 5050 pixel with its own TZ2812 IC. The pinout, pad layout and cut corner are the same as the WS2812B-5050’s (1 VDD, 2 DOUT, 3 GND, 4 DIN, cut corner at pin 3), so a WS2812B footprint fits, but the timing, colour order and supply range come from the TUOZHAN sheet, not WorldSemi’s: see the TZ2812 protocol page.

Absolute maximum: logic supply 3.0-7.5 V, output pin withstand 7.5 V, ESD 5 kV, -40 to +80 C operating. LCSC stock on 2026-10-15: 100,940 - the largest of the TUOZHAN listings.

Variants

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

Order codeFaceLensWhite PinsSiliconStatusFirst seenDatasheet
TZ-5050S2RGB-5V-I4-H1 — — — 4 — active 2021-08-17 PDF
LCSC stock 100,940 on 2026-10-15. Lens colour is not stated in the sheet (the photograph shows a clear lens).

Pinout

TZ-5050S2RGB-5V-I4-H1
TZ-5050S2RGB-5V-I4-H1 5050 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 in5.4 mm overall5.0 mmtop view1.5 mmside view
  • Power
  • Data
  • Ground
  • Pin 1
  • Cut corner

Outline and pin positions checked against the manufacturer datasheet (C26167850 TZ-5050S2RGB-5V-I4-H1 spec p4 (dimension view, pin diagram, pin table)). Numbered counter-clockwise from the top-left; the cut corner is at pin 3 (GND). What this means.

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

Protocol — TZ2812

Timings shown from datasheet.

TZ2812 bit timingTZ2812 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

  • electrically similar TZ1815

    The TZ-1815 / HC-1815 sheets from the same company print an identical timing table, supply range, 4 kHz PWM and 12 mA default output. The two names are the maker's; no sheet says one replaces the other. source ↗

  • electrically similar SK6812

    Inferred from the printed numbers only; no TUOZHAN sheet names SK6812 or any other vendor. The OPSCO SK6812 2025 sheet's typical timing (T0H 320, T0L 800, T1H 700, T1L 200 ns) falls inside all four TZ2812 windows (T0H 200-350, T0L 550-1200, T1H 550-1200, T1L 200-350 ns) and both send 24 bits GRB. Differences: TZ2812 resets after 80 us where the 2025 SK6812 sheet asks for more than 200 us, supply to 7.5 V against 5.5 V, and a WS2812B-style 400/850 ns stream is NOT inside the T0H window. source ↗

  • electrically similar of this Meihua MHP5050 IC (unnamed)

    The TUOZHAN TZ2812 sheet prints the same typical timing figures (T0H 295 / T0L 595 / T1H 595 / T1L 295 ns), 80 us reset and GRB order, and the same 5050 pin order. Window widths differ (TZ2812: T0H 200-350 ns; Meihua: 295 +/-50 ns), supply is 3.0-7.5 versus 3.5-7.5 V, and PWM is 3-5 kHz versus 4 kHz. No sheet states that one is a copy of the other.

  • electrically similar of this TZ1815

    Same timing table, supply range, PWM figure and 12 mA default output as the TZ2812 sheet. The sheets give the IC three names: TZ1815 (3535 sheet, which also writes TZ-1815), TZ-1815 (3528 and 2020 sheets) and HC-1815 (0807 sheet, and the "2020 HC-1815" product name on the 2020 sheet). Whether these are one die or several is not stated.

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.

  • 2021-08-17 datasheet revision TUOZHAN TZ-5050S2RGB-5V-I4-H1 specification, effective date (生效日期) on the cover ↗ 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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