
Overview
The BC859B is a bipolar made by DIOTEC in a SOT-23-3(TO-236-3) package with 5 pins. -55℃~+150℃ 100MHz 100mA 15nA 220 30V 650mV PNP SOT-23-3(TO-236-3) Bipolar (BJT) ROHS.
PCBKit's library has its footprint (Package_TO_SOT_SMD:SOT-23-3, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3200186).
Symbol
The library has no symbol for this part yet.
Footprint
Order codes
1- BC859BLCSC C3200186
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/diotec/BC859B" title="BC859B in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/diotec/BC859B.jpg" alt="BC859B" width="1200" height="900">[](https://pcbkit.io/parts/diotec/BC859B)Questions
Is there a KiCad symbol and footprint for the BC859B?
Yes. the footprint Package_TO_SOT_SMD:SOT-23-3, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the BC859B?
SOT-23-3(TO-236-3), with 5 pins. Its footprint is drawn on this page.
Where is the BC859B datasheet?
DIOTEC publishes it: the Datasheet link on this page opens it.
Where can I order the BC859B?
JLCPCB lists it as part C3200186, with 0 in stock; the sellers' links on this page open their listings.
What can replace the BC859B?
Parts like it in the library: the BC817-40 by UMW, the MMBT3904Q by Diodes Incorporated, the MMBT4401 by MDD and the MMBT3904 1AM -TD(0.3) by TDSEMIC. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8BC817-40
SOT-23-3-55℃~+150℃ 1 NPN 100MHz 100nA 250 300mW 45V 500mA 5V 700mV NPN SOT-23-3 Bipolar (BJT) ROHSUMWBipolar (BJT)MMBT3904Q
SOT-23-3-55℃~+150℃ 1 NPN 100 200mA 200mV 300MHz 310mW 40V 50nA 6V NPN SOT-23 Bipolar (BJT) ROHSDiodes IncorporatedBipolar (BJT)MMBT4401
SOT-23-3-55℃~+150℃ 1 NPN 100nA 250MHz 300 300mW 40V 600mA 6V 750mV NPN SOT-23-3 Bipolar (BJT) ROHSMDDBipolar (BJT)MMBT3904 1AM -TD(0.3)
SOT-23-3-55℃~+150℃ 100 200mA 200mV 300MHz 40V 50nA 625mW 6V NPN SOT-23-3 Bipolar (BJT) ROHSTDSEMICBipolar (BJT)S9013 J3
SOT-23-3SOT-23-3 Bipolar (BJT) ROHSTDSEMICBipolar (BJT)BCV47
SOT-23-3-55℃~+150℃@(Tj) 1 PNP 1000 100nA 10V 170MHz 1V@100mA,100A 300mW 500mA 60V Independent NPN SOT-23-3 Bipolar (BJT) ROHSGOODWORKBipolar (BJT)BC859C
SOT-23-3(TO-236-3)-55℃~+150℃ 1 PNP 100MHz 100mA 15nA 250mW 30V 420 5V 650mV PNP SOT-23-3(TO-236-3) Bipolar (BJT) ROHSDIOTECBipolar (BJT)MMBT4401
SOT-23-3(TO-236-3)-55℃~+150℃ 1 NPN 100 100nA 250MHz 300mW 40V 600mA 6V 750mV NPN SOT-23-3(TO-236-3) Bipolar (BJT) ROHSDIOTECBipolar (BJT)