
Car light switch schematic
Emmes1026/DRL-controller
KiCad schematic for a custom PCB that automatically turns on daytime running lights when the car starts.

The 2SD1047 is a bipolar made by SPTECH in a TO-3PN package with 3 pins. 1 NPN 100W 100uA 12A 140V 15MHz 2.5V 200 6V NPN TO-3PN Bipolar (BJT) ROHS.
PCBKit's library has its KiCad symbol (Transistor_BJT:2SD1047, from KiCad's library) and its footprint (Package_TO_SOT_THT:TO-3PB-3_Vertical, from KiCad's library), ready for a KiCad board. 24 are in stock at JLCPCB (part C2907901). 4 open-source boards in 4 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | B | Input |
| 2 | C | Passive |
| 3 | E | Passive |

Emmes1026/DRL-controller
KiCad schematic for a custom PCB that automatically turns on daytime running lights when the car starts.



Sakib-Ansari/Linear_Programmable_Power_Supply
This repository contains the complete KiCad project for a multi-board linear programmable bench power supply. The design is organized into separate PCBs, including the Power Board, Control Board, Front Panel, Output…
<iframe src="https://pcbkit.io/embed/parts/sptech/2SD1047" title="2SD1047 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/sptech/2SD1047.jpg" alt="2SD1047" width="1200" height="900">[](https://pcbkit.io/parts/sptech/2SD1047)Yes. The symbol is Transistor_BJT:2SD1047 and the footprint Package_TO_SOT_THT:TO-3PB-3_Vertical, both drawn on this page. PCBKit places them on a board for you when you design with it.
TO-3PN, with 3 pins. Its footprint is drawn on this page.
SPTECH publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C2907901, with 24 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the HT2SA1943-ODZ by HTCSEMI, the MJW18020 by onsemi, the TIP36CW by STMicroelectronics and the 2SB817 by SPTECH. Check their datasheets: a part that fits the footprint may still differ in its ratings.
4 boards in 4 repositories on GitHub; the most starred are listed on this page, with their KiCad files.