BC550C

Single Bipolar Transistors Overview

The onsemi BC550C is an NPN epitaxial silicon transistor housed in a TO-92 (TO-226AA) three-pin package. It features a maximum collector-emitter voltage of 45 V and a collector-base voltage of 50 V, with a maximum continuous collector current of 100 mA. The device has a maximum power dissipation of 500 mW and a minimum DC current gain (hFE) of 110. It operates within a temperature range of -65°C to +150°C junction temperature.

Single Bipolar Transistors Feature Summary

• Designed for low-noise amplifier applications due to specialized noise characteristics.
• Provides high-voltage switching capability suitable for general-purpose circuits.
• Functions as part of a complementary series with PNP counterparts.

Single Bipolar Transistors Applications

• Low-noise audio amplification stages
• General-purpose signal switching
• Complementary pair configurations

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'C' indicates the required hFE binning level against project specifications. Confirm RoHS compliance status as some legacy listings may indicate non-compliance. Ensure the TO-92 package dimensions match the PCB footprint requirements. Check for lead-free certification if environmental regulations apply to the final assembly.

Single Bipolar Transistors Selection Notes

Select this component when low noise performance is critical for small-signal amplification. The 45V rating supports moderate voltage swings in single-supply designs. Consider the complementary BC560C for matched PNP/NPN pairs. Evaluate thermal management needs given the 500mW dissipation limit in the TO-92 package.

Single Bipolar Transistors Part Context

The BC550C belongs to the BC546–BC550 family of NPN epitaxial transistors. This series is characterized by low noise and high voltage ratings, distinguishing it from standard switching transistors. It serves as a common alternative in consumer electronics and industrial control circuits requiring reliable small-signal processing.

Single Bipolar Transistors Replacement Considerations

• BC550CBU
• BC550CRL

Single Bipolar Transistors FAQ

What is the primary advantage of the BC550C over standard switching transistors?

The BC550C is optimized for low-noise performance, making it superior for sensitive analog amplification compared to general-purpose switching transistors.

Does the BC550C have a complementary PNP counterpart?

Yes, it is part of a complementary series that includes the BC560C PNP transistor.