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BC857B, in 3D

BC857B

STMicroelectronics

1 PNP 100MHz 100mA 15nA 200mW 45V 5V 650mV 800 PNP SOT-23 Bipolar (BJT) ROHS

Extended
Category
Bipolar (BJT)
Package
SOT-23
Pins
3

Overview

The BC857B is a bipolar made by STMicroelectronics in a SOT-23 package with 3 pins. 1 PNP 100MHz 100mA 15nA 200mW 45V 5V 650mV 800 PNP SOT-23 Bipolar (BJT) ROHS.

PCBKit's library has its KiCad symbol (Transistor_BJT:BC857, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C2987757).

Symbol

123
Transistor_BJT:BC857From KiCad's library

Footprint

123
Package_TO_SOT_SMD:SOT-23From KiCad's library

Order codes

1

Pinout

3
The pins of the BC857B
PinNameType
1BInput
2EPassive
3CPassive

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A live frame, for any web page
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A picture
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A picture that opens the part, for a README
[![BC857B](https://pcbkit.io/embed/parts/st/BC857B.jpg?size=s)](https://pcbkit.io/parts/st/BC857B)

Questions

Is there a KiCad symbol and footprint for the BC857B?

Yes. The symbol is Transistor_BJT:BC857 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.

What package is the BC857B?

SOT-23, with 3 pins. Its footprint is drawn on this page.

Where is the BC857B datasheet?

STMicroelectronics publishes it: the Datasheet link on this page opens it.

Where can I order the BC857B?

JLCPCB lists it as part C2987757, with 0 in stock; the sellers' links on this page open their listings.

What can replace the BC857B?

Parts like it in the library: the MMBT3904 by hongjiacheng, the S8050 by hongjiacheng, the SS8050 by hongjiacheng and the MMBT5551 by hongjiacheng. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8