
Led controller
codeThatThinks/autotank-led-hw
A CANbus-enabled LED and GPIO controller -- PCB design files
SMCExtended
24V 26.7V 300W 43V TVS SO-8 ESD and Surge Protection (TVS/ESD) ROHS
The SMDA24C is an ESD And Surge Protection made by SMC in a SO-8 package with 5 pins. 24V 26.7V 300W 43V TVS SO-8 ESD and Surge Protection (TVS/ESD) ROHS.
PCBKit's library has its footprint (Package_SO:SO-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3703536). 1 open-source board in 1 repository on GitHub use it.
The library has no symbol for this part yet.

codeThatThinks/autotank-led-hw
A CANbus-enabled LED and GPIO controller -- PCB design files
Yes. the footprint Package_SO:SO-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
SO-8, with 5 pins. Its footprint is drawn on this page.
SMC publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C3703536, with 0 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the SLVDA2.8.TBT by SEMTECH, the UCLAMP2804L-N by BORN, the SGSLVU2.8-4 by SURGING and the TPE08A2.8L04 by TECH PUBLIC. 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.