BC856BW

Overview

The BC856BW is a single PNP bipolar junction transistor (BJT) manufactured by Diotec Semiconductor, distributed by Shenzhen SLKORMicro Semicon Co., Ltd. It features a collector-emitter breakdown voltage of 65 V and a maximum continuous collector current of 100 mA. The device operates with a transition frequency of 100 MHz and dissipates up to 200 mW of power. It is housed in an SOT-323 surface-mount package and supports a junction temperature range from -55°C to 150°C.

Feature Summary

• PNP transistor configuration for signal amplification and switching applications
• High DC current gain ensuring efficient control with minimal base drive
• Compact SOT-323 surface-mount packaging for space-constrained designs
• Wide operating temperature range suitable for diverse environmental conditions

Applications

• General-purpose signal amplification circuits
• Switching applications in low-power digital logic interfaces
• Audio pre-amplifier stages requiring low noise characteristics

Procurement Notes

Verify the manufacturer origin, as the BC856BW is primarily produced by Diotec Semiconductor. Confirm RoHS3 compliance and moisture sensitivity level (MSL 1) requirements during sourcing. Ensure the distributor authorization matches the specific batch codes for quality assurance. Cross-reference part numbers carefully to avoid confusion with NPN variants like the BC846BW.

Selection Notes

Select this component when a PNP topology is required for low-voltage, low-current operations. The 65V rating provides sufficient headroom for standard 5V or 12V systems. Consider the SOT-323 footprint for PCB layout constraints. Compare hFE minimums against circuit gain requirements to ensure adequate saturation performance under expected load conditions.

Part Context

This component belongs to the BC856 family of small-signal PNP transistors. It serves as the complementary counterpart to the BC846 series NPN transistors. The 'W' suffix typically denotes the specific SOT-323 tape-and-reel packaging format. It is widely used in consumer electronics and industrial control boards where compact discrete switching is necessary.

Replacement Considerations

Direct substitutes include other manufacturers' BC856B variants in SOT-323 packages. Verify pinout compatibility and electrical parameter tolerances before substitution. Generic equivalents must match the 65V Vceo and 100mA Ic ratings.