BC856B TR PBFREE

Overview

The BC856B TR PBFREE is a PNP general-purpose small-signal transistor manufactured by Central Semiconductor Corp. It operates with a maximum collector current of 100 mA and a collector-emitter voltage rating of 65 V. The device features a minimum DC current gain (hFE) of 125 at specified test conditions. Designed for surface-mount applications, it utilizes the SOT-23 package to provide efficient thermal dissipation with a maximum power dissipation of 330 mW. The component supports a wide operating junction temperature range from -65°C to 150°C.

Feature Summary

• PNP epitaxial planar construction optimized for low-voltage switching and amplification tasks
• High DC current gain ensures reliable signal processing in general-purpose circuits
• Surface-mount SOT-23 packaging facilitates automated assembly and compact board layouts

Applications

• General-purpose switching applications
• Audio frequency (AF) amplifier stages
• Driver circuits for low-power loads

Procurement Notes

Verify the manufacturer designation as Central Semiconductor Corp against the specific part marking. Confirm the suffix indicates tape-and-reel packaging suitable for automated insertion. Ensure RoHS compliance documentation matches the project requirements. Cross-reference the datasheet revision date to confirm parameter stability before finalizing procurement orders.

Selection Notes

Select this component when a PNP transistor with 65V breakdown and 100mA continuous current capability is required. The SOT-23 form factor is ideal for space-constrained designs. Compare hFE ranges against circuit biasing needs to ensure adequate gain margins. Verify thermal management capabilities within the target enclosure environment.

Part Context

This part belongs to the BC856 series of PNP transistors, which are widely used in consumer electronics and industrial control systems. It serves as the complementary counterpart to the BC846 NPN series. The BC856B variant specifically offers a defined minimum current gain band, providing consistency for mass-produced amplifier and switching designs across various electronic equipment categories.

Replacement Considerations

Compatible substitutes include BC856B variants from Nexperia, Diodes Incorporated, and Onsemi. Verify pinout compatibility and electrical parameters such as Vceo and Ic before substitution. Ensure the replacement package matches the existing footprint.