BC857BS Datasheet PDF – 45V, 100mA, PNP Transistor

Part Number: BC857BS, Marking : 3Ft

Function: -45V, -100mA, PNP General Purpose Double Transistor

Package: SC-88, SOT-363 Type

Manufacturer: NXP Semiconductors.

Image and Pinouts:

BC857BS datasheet



The BC857BS is PNP double transistor in an SC-88, SOT363 plastic package. NPN complement: BC847BS.

A PNP transistor is a type of bipolar junction transistor (BJT) that has a “positive-negative-positive” (PNP) configuration.

The term “PNP” refers to the polarities of the three regions in the transistor: the P-type base, the N-type collector, and the P-type emitter.


1. Low collector capacitance

2. Low collector-emitter saturation voltage

3. Closely matched current gain

4. Reduces number of components and boardspace

5. No mutual interference between the transistors.


Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = – 50V

2. Collector to Emitter Voltage: Vceo = – 45V

3. Emitter to Base Voltage: Vebo = – 5V

4. Collector Current: Ic = -100mA

5. Total Dissipation : Ptot = 200mW

6. Junction Temperature: Tj = 150°C

7. Storage Temperature: Tsg = -55 ~ +150°C


1. General purpose switching and amplification

Other data sheets are available within the file: BC857B, BC857

BC857BS Datasheet PDF Download

BC857BS pdf