Skip to the content
PCBKitNew board
BC557A, in 3D

BC557A

DIOTEC

100mA 110 150MHz 15nA 45V 650mV PNP TO-92 Bipolar (BJT) ROHS

Extended
DatasheetJLCPCBLCSCdiotec/BC557A
Category
Bipolar (BJT)
Package
TO-92
Pins
5

Overview

The BC557A is a bipolar made by DIOTEC in a TO-92 package with 3 pins. 100mA 110 150MHz 15nA 45V 650mV PNP TO-92 Bipolar (BJT) ROHS.

PCBKit's library has its KiCad symbol (LibrePCB_Base:BC557, from Librepcb) and its footprint (Package_TO_SOT_THT:TO-92L, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3201553).

Symbol

C1E3B2
LibrePCB_Base:BC557From Librepcb

Footprint

123
Package_TO_SOT_THT:TO-92LFrom KiCad's library

Order codes

1

Pinout

3
The pins of the BC557A
PinNameType
1CPassive
2BPassive
3EPassive

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/diotec/BC557A" title="BC557A in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/diotec/BC557A.jpg" alt="BC557A" width="1200" height="900">
A picture that opens the part, for a README
[![BC557A](https://pcbkit.io/embed/parts/diotec/BC557A.jpg?size=s)](https://pcbkit.io/parts/diotec/BC557A)

Questions

Is there a KiCad symbol and footprint for the BC557A?

Yes. The symbol is LibrePCB_Base:BC557 and the footprint Package_TO_SOT_THT:TO-92L, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the BC557A?

TO-92, with 3 pins. Its footprint is drawn on this page.

Where is the BC557A datasheet?

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

Where can I order the BC557A?

JLCPCB lists it as part C3201553, with 0 in stock; the sellers' links on this page open their listings.

What can replace the BC557A?

Parts like it in the library: the SS8050 by JSMSEMI, the S9013 by JSMSEMI, the SS8050 by Slkor and the S9015 by Jiangsu Changjing Electronics Technology (CJ). Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8