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BC858A on a board, in 3D

BC858A

STMicroelectronics

Extended
DatasheetJLCPCBLCSCst/BC858A
Category
Zener Diodes
Package
SOT-23
Pins
5

Overview

The BC858A is a zener Diode made by STMicroelectronics in a SOT-23 package with 5 pins.

PCBKit's library has its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C7464679).

Symbol

The library has no symbol for this part yet.

Footprint

123
Package_TO_SOT_SMD:SOT-23From KiCad's library

Parameters

11
Collector - Emitter Voltage VCEO
30V
Configuration
Standalone
Current - Collector Cutoff
15nA
Current - Collector(Ic)
100mA
DC Current Gain
250
Emitter-Base Voltage(Vebo)
5V
Number
1 PNP
Pd - Power Dissipation
200mW
Transition frequency(fT)
100MHz
Vce Saturation(VCE(sat))
300mV, 650mV
type
PNP

Order codes

1

Show this part on your page

A live frame, for any web page
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A picture
<img src="https://pcbkit.io/embed/parts/st/BC858A.jpg" alt="BC858A" width="1200" height="900">
A picture that opens the part, for a README
[![BC858A](https://pcbkit.io/embed/parts/st/BC858A.jpg?size=s)](https://pcbkit.io/parts/st/BC858A)

Questions

Is there a KiCad symbol and footprint for the BC858A?

Yes. 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 BC858A?

SOT-23, with 5 pins. Its footprint is drawn on this page.

Where is the BC858A datasheet?

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

Where can I order the BC858A?

JLCPCB lists it as part C7464679, with 0 in stock; the sellers' links on this page open their listings.

What can replace the BC858A?

Parts like it in the library: the MMBT4240 by STMicroelectronics, the BZX84C18 by hongjiacheng, the BZX84-C33 by Nexperia and the BZX84-C36 by Nexperia. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8