BC846BW

Overview

The BC846BW is a single NPN bipolar junction transistor (BJT) manufactured by Diotec Semiconductor, housed in an SOT-323 surface-mount package. It features a maximum collector-emitter voltage of 65 V and a continuous collector current rating of 100 mA. The device exhibits a transition frequency of 100 MHz and a maximum power dissipation of 200 mW. Key electrical characteristics include a DC current gain minimum of 200 at 2 mA and 5 V, and a collector-emitter saturation voltage of 600 mV at 5 mA base current and 100 mA collector current. Operating temperatures range from -55°C to +150°C.

Feature Summary

• Single NPN configuration designed for general-purpose amplifier applications
• Compact SOT-323 surface-mount package optimized for low-power integration
• High DC current gain suitable for signal amplification tasks

Applications

• General-purpose amplifier circuits
• Low-power surface mount applications
• Signal processing stages requiring small-signal switching

Procurement Notes

Verify the manufacturer origin carefully, as the BC846BW part number is primarily associated with Diotec Semiconductor. While Shenzhen Slkormicro Semicon Co., Ltd. is listed in the query, official distributor data attributes this specific part number to Diotec or Taiwan Semiconductor variants. Confirm RoHS compliance and AEC-Q101 automotive qualification status if required for your specific design, as these attributes vary by manufacturer suffix and production batch.

Selection Notes

Select this component when a compact NPN transistor with moderate voltage handling and high gain is required for space-constrained designs. The SOT-323 footprint offers a smaller alternative to larger packages while maintaining sufficient current capability for general-purpose tasks. Ensure the application does not exceed the 200 mW power dissipation limit under worst-case thermal conditions.

Part Context

This component belongs to the BC846 series of small-signal NPN transistors. Similar parts in this family include the BC846A and BC846C, which differ primarily in their DC current gain ranges. The BC846BW specifically denotes a variant often supplied by Diotec Semiconductor in reel or cut-tape formats, distinct from automotive-grade versions like the BC846BW-AQ.

Replacement Considerations

Direct substitutes include the BC846BWH RFG from Taiwan Semiconductor Corporation and the BC846BWT1 from LRC (Leshan Radio Company). These alternatives share identical pinouts and core electrical specifications, ensuring functional compatibility in existing circuit layouts without requiring schematic modifications.