APA104

5050 · smd · APA104 · APA Electronic

Also sold as APA104, WS2812B compatible

Channels
RGB
Wires
1-wire
Dimensions
5.0 × 5.0 × 1.6 mm
Pins
4
Max current
60 mA
Supply
4–5.5 V

APA’s WS2812B workalike in the same 5050 footprint. Worth knowing about mainly because it ships inside strip sold as “WS2812B” without disclosure, and its reset requirements differ enough to matter on a marginal driver.

Variants

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

Order codeFaceLensWhite PinsSiliconStatusFirst seenDatasheet
APA104 white clear 4 active unknown

Pinout

APA104
top view1. VDDPWR2. DOUTOUT3. VSSGND4. DININ
  1. 1 VDD power
  2. 2 DOUT data out
  3. 3 VSS ground
  4. 4 DIN data in

Protocol — APA104

Timings shown from fastled.

hilo012502500T0H 250nsT1H 875ns0 bit1 bit
T0H 250 / T0L 1000 · T1H 875 / T1L 375 · period 1250 ns · reset 280 µs source: fastled

Compatibility

  • near clone WS2812B

    Same single-wire 800 kHz scheme and the same 5050 footprint, and every library drives it as a WS2812. Reset requirements differ, so a marginal driver that works on one may not work on the other.

  • near clone of this WS2812B

    Same 800 kHz single-wire signalling, but the APA104 inverts nothing and differs in reset requirements; usually interchangeable in practice.