BC857BR TR PBFREE

Overview

The BC857BR TR PBFREE is a small signal bipolar transistor manufactured by Central Semiconductor Corp. It is a single-element PNP silicon device housed in an SOT-23 surface-mount package. The component supports a maximum collector current of 0.1 A and a collector-emitter breakdown voltage of 45 V. It features a minimum DC current gain (hFE) of 420, ensuring high amplification capability. The unit operates at a maximum junction temperature of 150 °C and is lead-free compliant.

Feature Summary

• Single-element PNP silicon construction for general-purpose switching and amplification
• Ultra-small SOT-23 surface-mount package design
• High DC current gain characteristics
• Lead-free and RoHS compliant manufacturing

Applications

• General purpose amplifier circuits
• Signal switching applications
• Low power surface mount designs

Procurement Notes

Verify the specific datasheet version from Central Semiconductor to confirm exact hFE binning and thermal resistance values. Ensure the ordering code matches the required tape-and-reel quantity. Confirm that the 'PBFREE' designation aligns with current environmental compliance requirements for the target assembly process.

Selection Notes

Select this component when a compact PNP transistor with high current gain is required for space-constrained PCB layouts. Compare the 45V rating against circuit voltage peaks. Verify that the SOT-23 footprint matches the board design. Consider the 0.1A limit for load requirements.

Part Context

This part belongs to the BC857 series of small signal transistors. It serves as a complement to NPN types like the BC847. The BR suffix typically denotes specific gain grading within the series. Central Semiconductor produces this variant for industrial and commercial electronics markets.

Replacement Considerations

Compatible substitutes include BC857B variants from other manufacturers such as ON Semiconductor or Nexperia, provided the pinout and electrical ratings match.