
TeleprinterHat
MattisLind/teleprinterHat
A RaspberryPi HAT that interfaces a old school teleprinter
onsemiExtended
-55℃~+150℃ 1 NPN 100nA 225mW 25 300V 500mA 500mV 50MHz 6V NPN SOT-23 Bipolar (BJT) ROHS
The MMBTA42L is a bipolar made by onsemi in a SOT-23 package with 3 pins. -55℃~+150℃ 1 NPN 100nA 225mW 25 300V 500mA 500mV 50MHz 6V NPN SOT-23 Bipolar (BJT) ROHS.
PCBKit's library has its KiCad symbol (Transistor_BJT:MMBTA42, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 133,810 are in stock at JLCPCB (part C94389). 1 open-source board in 1 repository on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | B | Input |
| 2 | E | Passive |
| 3 | C | Passive |

MattisLind/teleprinterHat
A RaspberryPi HAT that interfaces a old school teleprinter
Yes. The symbol is Transistor_BJT:MMBTA42 and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOT-23, 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 C94389, with 133,810 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the S8050 by hongjiacheng, the SS8050 by hongjiacheng, the MMBT5551 by hongjiacheng and the MMBT5401 by hongjiacheng. 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.