BC847BNMMTF

Overview

The BC847BNMMTF is a small-signal NPN bipolar junction transistor manufactured by onsemi. It is housed in the SOT-363 surface-mount package, which integrates two electrically independent NPN transistors within a single compact footprint. The device features a collector-emitter voltage rating of 45 V and a maximum DC collector current of 100 mA per transistor. With a power dissipation capability of 225 mW and a transition frequency of 100 MHz, it supports general-purpose amplification and switching applications across an operating temperature range of -55°C to +150°C.

Feature Summary

• Dual NPN configuration providing two independent transistors in a single SOT-363 package for space-constrained designs
• High current gain characteristics suitable for low-noise amplification and signal processing tasks
• Robust thermal performance with a maximum junction temperature rating of 150°C

Applications

• General-purpose amplification circuits
• Switching applications in consumer electronics
• Driver stages for low-power loads

Procurement Notes

Verify the specific suffix 'NMMTF' against the official onsemi datasheet to confirm pinout compatibility and electrical tolerances. Ensure the component matches the required SOT-363 form factor and that the manufacturer source is authorized. Cross-reference the date code and lot traceability to meet quality standards for the intended production environment.

Selection Notes

Select this component when a dual NPN configuration is required in a minimal board area. Compare the 225 mW power dissipation limit against the thermal design of the target application. Verify that the 45 V breakdown voltage exceeds the maximum circuit voltage peaks to ensure reliable operation under all expected load conditions.

Part Context

This part belongs to the BC847 family of small-signal NPN transistors. While standard BC847 variants often use the SOT-23 package for single transistors, the BC847BNMMTF utilizes the SOT-363 package to house two complementary or identical devices. This variant serves as a cost-effective solution for designs requiring multiple discrete NPN functions without increasing the component count or board space.

Replacement Considerations

Direct substitutes include other manufacturers' BC847B parts in the SOT-363 package, such as Nexperia BC847BP or ROHM BC847BS. Verify that any replacement maintains the same pinout assignment and meets the 45 V / 100 mA specifications.