BC857CW/DG/B2,135

Overview

The BC857CW/DG/B2,135 is a PNP general-purpose transistor manufactured by Nexperia. It is housed in an SOT323 (SC-70) surface-mount plastic package. The device features a collector-emitter voltage rating of 45 V and a continuous collector current capability of 100 mA. It serves as the PNP complement to the BC847 series NPN transistors. The component is supplied in tape and reel packaging for automated assembly processes.

Feature Summary

• Ultra-small SOT323 leaded surface-mount package design
• General-purpose switching and amplification capabilities
• High power dissipation relative to package size

Applications

• General-purpose switching circuits
• Small signal amplification
• Mobile applications with space constraints

Procurement Notes

Verify the complete ordering code including the suffix ,135 to confirm tape and reel packaging specifications. Ensure the DG variant designation aligns with specific manufacturing site or binning requirements. Confirm RoHS compliance status through official Nexperia documentation prior to integration into regulated assemblies.

Selection Notes

Select this component when a compact PNP solution is required for low-power signal processing. The SOT323 package offers board space savings compared to larger leaded alternatives. Verify thermal management needs against the package's power dissipation limits for the intended operating environment.

Part Context

This part belongs to the BC857 family of general-purpose PNP transistors from Nexperia. It shares functional similarities with other members like the BC857C but differs in package type and supply format. The CW/DG designation indicates the specific SOT323 package style and internal die configuration within the broader product line.

Replacement Considerations

Direct pin-compatible replacements include other BC857 variants in SOT323 packages such as BC857CW,115. Verify electrical parameter matching, particularly current gain bins, before substituting with generic equivalents.