BC856BS/DG/B4X

Overview

The BC856BS/DG/B4X is a dual PNP bipolar junction transistor (BJT) array manufactured by Nexperia USA Inc. It integrates two independent PNP transistors within a compact SOT-363 (SC-88) surface-mount package, specifically the 6-TSSOP configuration. The device supports a maximum continuous collector current of 100 mA and offers a collector-emitter breakdown voltage (VCEO) of 65 V, with a collector-base voltage (VCBO) rating of 80 V. Key electrical characteristics include a transition frequency (fT) of 100 MHz and a power dissipation capability of 300 mW. The component operates reliably across an extended temperature range from -65°C to +150°C junction temperature.

Feature Summary

• Dual PNP configuration providing two independent switching elements in a single compact footprint
• High thermal stability supporting operation up to 150°C junction temperature
• Low saturation voltage characteristics for efficient signal switching applications

Applications

• General-purpose signal switching circuits
• Amplification stages in audio or RF equipment
• Logic level translation interfaces

Procurement Notes

Verify the specific suffix against official Nexperia documentation to confirm pinout compatibility and electrical tolerances. Ensure the ordering code matches the required packaging format, such as cut tape or reel, for automated assembly processes. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before procurement.

Selection Notes

Select this component when space-constrained designs require dual PNP functionality without increasing board area. Compare the 100 mA current limit and 65 V voltage rating against circuit requirements to ensure adequate headroom. Consider the SOT-363 package dimensions for PCB layout constraints and verify thermal management needs given the 300 mW power dissipation limit.

Part Context

This part belongs to the BC856 series of general-purpose PNP transistors, which are widely used in consumer electronics and industrial control systems. The 'S' suffix typically denotes the dual configuration in the SOT-363 package, distinguishing it from single-transistor variants like the BC856B in SOT-23 packages. It serves as a complementary counterpart to NPN arrays such as the BC846S.

Replacement Considerations

Publicly confirmed substitute part numbers include BC856S,115 and BC856S,125. These variants share identical electrical specifications and pin configurations, allowing for direct replacement in existing designs while potentially differing only in packaging quantities or manufacturing lot dates.