
InterfaceBoard
farlepet/keithley-615-printer-boards
Drop-in replacements for the buffer/printer boards for the Keithley 615 Electrometer

The BC856W is a bipolar made by Jiangsu Changjing Electronics Technology (CJ) in a SOT-323 package with 3 pins. -55℃~+150℃ 1 PNP 100MHz 100mA 125 150mW 15nA 5V 650mV 65V PNP SOT-323 Bipolar (BJT) ROHS.
PCBKit's library has its KiCad symbol (Transistor_BJT:BC856W, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-323_SC-70, from KiCad's library), ready for a KiCad board. 2,766 are in stock at JLCPCB (part C2910227). 2 open-source boards in 2 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | B | Input |
| 2 | E | Passive |
| 3 | C | Passive |

farlepet/keithley-615-printer-boards
Drop-in replacements for the buffer/printer boards for the Keithley 615 Electrometer

drewsum/VFD_Clock
A VFD clock centered around a PIC32MZ EF microcontroller
<iframe src="https://pcbkit.io/embed/parts/cj/BC856W" title="BC856W in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/cj/BC856W.jpg" alt="BC856W" width="1200" height="900">[](https://pcbkit.io/parts/cj/BC856W)Yes. The symbol is Transistor_BJT:BC856W and the footprint Package_TO_SOT_SMD:SOT-323_SC-70, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOT-323, with 3 pins. Its footprint is drawn on this page.
Jiangsu Changjing Electronics Technology (CJ) publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C2910227, with 2,766 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the SS8050 by Jiangsu Changjing Electronics Technology (CJ), the MMBT3904W by GOODWORK, the SS8050W-H by hongjiacheng and the 2SC1623 by Jiangsu Changjing Electronics Technology (CJ). Check their datasheets: a part that fits the footprint may still differ in its ratings.
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.