Neopixel project v3.0
Scrarf/Neopixel-project-v3.0
PCB for ESP8685H4 WIFI based RGBW led driver.

The DO3407B is a MOSFET made by DOINGTER in a SOT-23 package with 3 pins. -55℃~+150℃ 1 P-Channel 1.3W 12.5nC@10V 2.5V 30V 4.1A 55mΩ@10V 575pF 58pF 65pF P-Channel SOT-23 MOSFETs ROHS.
PCBKit's library has its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 8,823 are in stock at JLCPCB (part C41384538). 1 open-source board in 1 repository on GitHub use it.
The library has no symbol for this part yet.
Scrarf/Neopixel-project-v3.0
PCB for ESP8685H4 WIFI based RGBW led driver.
<iframe src="https://pcbkit.io/embed/parts/doingter/DO3407B" title="DO3407B in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/doingter/DO3407B.jpg" alt="DO3407B" width="1200" height="900">[](https://pcbkit.io/parts/doingter/DO3407B)Yes. the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOT-23, with 3 pins. Its footprint is drawn on this page.
DOINGTER publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C41384538, with 8,823 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the AO3400A by Alpha & Omega Semiconductor, the AO3400A by UMW, the AO3401A by UMW and the AO3400 by Guangdong Hottech. Check their datasheets: a part that fits the footprint may still differ in its ratings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.