
Ac dimmer
niliha/ravelights-hardware
PCB designs for driving light fixtures like WS28XX LED strips or light bulbs

The KSP44 is a bipolar made by luJing in a TO-92 package with 5 pins. TO-92 Bipolar (BJT) ROHS.
PCBKit's library has its footprint (Package_TO_SOT_THT:TO-92L, from KiCad's library), ready for a KiCad board. 8,470 are in stock at JLCPCB (part C55259594). 1 open-source board in 1 repository on GitHub use it.
The library has no symbol for this part yet.

niliha/ravelights-hardware
PCB designs for driving light fixtures like WS28XX LED strips or light bulbs
<iframe src="https://pcbkit.io/embed/parts/lujing/KSP44" title="KSP44 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/lujing/KSP44.jpg" alt="KSP44" width="1200" height="900">[](https://pcbkit.io/parts/lujing/KSP44)Yes. the footprint Package_TO_SOT_THT:TO-92L, both drawn on this page. PCBKit places them on a board for you when you design with it.
TO-92, with 5 pins. Its footprint is drawn on this page.
JLCPCB lists it as part C55259594, with 8,470 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the S9013 by HXY MOSFET, the 2N2222A by Slkor, the 2N2222A-338 by ALJ and the 2N5401H-98 by ALJ. 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.