
CTA control board
PySpice-org/eda-rw
Python library to read/write KiCad and LibrePCB Sexpr file format
NexperiaExtended
-65℃~+150℃ 1 PNP 100nA 145MHz 1A 500mV 5V 63 650mW 80V PNP SOT-223 Bipolar (BJT) ROHS
The BCP53 is a bipolar made by Nexperia in a SOT-223 package with 4 pins. -65℃~+150℃ 1 PNP 100nA 145MHz 1A 500mV 5V 63 650mW 80V PNP SOT-223 Bipolar (BJT) ROHS.
PCBKit's library has its KiCad symbol (Transistor_BJT:BCP53, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-223, from KiCad's library), ready for a KiCad board. 65,352 are in stock at JLCPCB (part C18737). 8 open-source boards in 6 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | B | Input |
| 2 | C | Passive |
| 3 | E | Passive |
| 4 | C | Passive |

PySpice-org/eda-rw
Python library to read/write KiCad and LibrePCB Sexpr file format

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Yes. The symbol is Transistor_BJT:BCP53 and the footprint Package_TO_SOT_SMD:SOT-223, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOT-223, with 4 pins. Its footprint is drawn on this page.
Nexperia publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C18737, with 65,352 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the BCP56 by HXY MOSFET, the BCP53-16 by Nexperia, the BCP56-16,115 by Nexperia and the BCP53-16 by Jiangsu Changjing Electronics Technology (CJ). Check their datasheets: a part that fits the footprint may still differ in its ratings.
8 boards in 6 repositories on GitHub; the most starred are listed on this page, with their KiCad files.