
QRPAmplifier
profdc9/QRPAmplifier
Layout of WA2EBY amplifier in Kicad, licensed CC-BY-SA 4.0

The TIP42 is a bipolar made by onsemi in a TO-220-3 package with 3 pins. 2W 30 3MHz 40V 6A 700uA PNP TO-220-3 Bipolar (BJT) ROHS.
PCBKit's library has its KiCad symbol (Transistor_BJT:TIP42, from KiCad's library) and its footprint (Package_TO_SOT_THT:TO-220-3_Vertical, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3200871). 26 open-source boards in 25 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | B | Input |
| 2 | C | Passive |
| 3 | E | Passive |

profdc9/QRPAmplifier
Layout of WA2EBY amplifier in Kicad, licensed CC-BY-SA 4.0

profdc9/FlexibleCharger
An Arduino-controlled charger for different kinds of batteries, or it can be a standalone power supply

promesoft/KicadJE-EuroPowerSupply
Takes a Laptop 19V input and makes +-12 and 5 v out

Markus-Fitz/Protection-board
Speaker-protection board for power amplifier.

MUDAL/Function-Generator
Custom Function Generator designed and developed by Olaoluwa Raji. This project is a complete embedded system solution with both hardware and software implemented by me. Relevant reference materials are included.


ANSHAD134/PCB-Files
A collection of my personal KiCad PCB design projects, custom symbol/footprint libraries, and 3D models used across different electronics builds.

borislav968/s3mono
ЭСУД SECU-3 поддерживает использование регуляторов холостого хода на основе шагового привода или электромагнита (ШИМ).
<iframe src="https://pcbkit.io/embed/parts/onsemi/TIP42" title="TIP42 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/onsemi/TIP42.jpg" alt="TIP42" width="1200" height="900">[](https://pcbkit.io/parts/onsemi/TIP42)Yes. The symbol is Transistor_BJT:TIP42 and the footprint Package_TO_SOT_THT:TO-220-3_Vertical, both drawn on this page. PCBKit places them on a board for you when you design with it.
TO-220-3, with 3 pins. Its footprint is drawn on this page.
onsemi publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C3200871, with 0 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the TIP41C by JSMSEMI, the TIP42C by STMicroelectronics, the TIP42C by JSMSEMI and the TIP41C by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
26 boards in 25 repositories on GitHub; the most starred are listed on this page, with their KiCad files.