BC847CTT1

Overview

The onsemi BC847CTT1 is a small-signal NPN bipolar junction transistor (BJT) designed for general-purpose switching and amplification applications. It features a collector-emitter voltage rating of 45 V, a continuous collector current capacity of 100 mA, and a maximum power dissipation of 200 mW. The device utilizes a surface-mount SOT-363 package, which houses two monolithically integrated NPN transistors in a single compact form factor. This configuration offers high DC current gain with a minimum hFE of 420 at specified test conditions, ensuring reliable performance across an operating temperature range from -55°C to +150°C.

Feature Summary

• Dual NPN transistor integration within a single SOT-363 surface-mount package for space-efficient circuit design
• High DC current gain capability suitable for low-level signal amplification tasks
• Automotive-grade qualification compliant with AEC-Q101 standards for enhanced reliability
• Robust thermal performance supporting operation up to a maximum junction temperature of 150°C

Applications

• General-purpose switching circuits in consumer electronics
• Low-frequency amplification stages in audio and sensor interfaces
• Automotive electronic control modules requiring AEC-Q101 qualified components
• Signal processing applications in portable devices

Procurement Notes

Verify the specific suffix T1 corresponds to the standard tape-and-reel packaging format intended for automated assembly processes. Confirm that the component meets the required AEC-Q101 automotive qualification if deployed in vehicle systems. Ensure the ordering part number matches the exact gain binning and package variant specified in the official datasheet to avoid functional mismatches during production integration.

Selection Notes

Select this component when dual NPN functionality is required in a minimal footprint without increasing board area. The SOT-363 package provides a cost-effective alternative to discrete dual-transistor solutions. Consider the 45V breakdown voltage and 100mA current limits to ensure adequate headroom for the target application's electrical demands. Verify compatibility with existing PCB footprints designed for SC-88 or SOT-363 configurations.

Part Context

This component belongs to the widely adopted BC847 series of small-signal NPN transistors, known for their versatility in general-purpose electronics. The BC847CTT1 variant specifically integrates two matched NPN transistors into one package, distinguishing it from single-transistor counterparts like the BC847C. Manufactured by onsemi, it leverages established silicon planar technology to deliver consistent electrical characteristics across mass-produced units.

Replacement Considerations

• BC847CTT3G
• MMBT3904LT1G

FAQ

What is the physical package type for the BC847CTT1?

The BC847CTT1 is housed in an SOT-363 surface-mount package, which contains two monolithic NPN transistors.

Is the BC847CTT1 qualified for automotive applications?

Yes, the BC847CTT1 is qualified according to the AEC-Q101 standard for automotive electronic components.

What is the maximum collector-emitter voltage rating?

The maximum collector-emitter voltage (VCEO) rating for the BC847CTT1 is 45 V.