BC856B,235

Overview

The BC856B,235 is a PNP general-purpose bipolar junction transistor manufactured by Nexperia. It operates with a maximum collector-emitter voltage of 65 V and a continuous collector current of 100 mA. The device features a minimum DC current gain (hFE) of 220 at 2 mA and 5 V. It has a power dissipation rating of 250 mW and a transition frequency of 100 MHz. The component is housed in an SOT-23 surface-mount package and supports operating temperatures from -65 °C to +150 °C.

Feature Summary

• PNP polarity configuration for general-purpose switching and amplification
• High DC current gain ensuring effective signal control
• Small SOT-23 surface-mount package design

Applications

• General-purpose switching circuits
• Amplifier stages
• Audio amplification
• Power management systems

Procurement Notes

Verify the specific suffix

Selection Notes

Select this component when a PNP transistor with moderate voltage handling and high gain is required. Ensure the circuit current remains below 100 mA and thermal conditions allow for 250 mW dissipation. Verify that the SOT-23 footprint matches the PCB layout. Consider the BC846B as the NPN complement if complementary pairs are needed.

Part Context

This part belongs to the BC856 series of PNP transistors produced by Nexperia. The series includes variants like BC856A and BC857B, differentiated primarily by their DC current gain ranges. The BC856B specifically targets applications requiring a minimum hFE of 220. It is widely used in consumer electronics and industrial controls due to its reliability and small form factor.

Replacement Considerations

Direct substitutes include BC856B from other manufacturers such as Diodes Incorporated or STMicroelectronics, provided they meet the same electrical specifications and package dimensions. Cross-referencing datasheets for pinout compatibility and thermal limits is essential before substitution.