BC550B

Single Bipolar Transistors Overview

The onsemi BC550B is an NPN epitaxial silicon transistor housed in a TO-92 through-hole package. It features a maximum collector current of 100 mA and a collector-emitter voltage rating of 45 V. The device offers a minimum DC current gain (hFE) of 110, with a maximum power dissipation of 500 mW. Key electrical limits include a collector-base voltage of 50 V, an emitter-base voltage of 5 V, and a transition frequency of 1 MHz. It operates within a temperature range of 0°C to 150°C.

Single Bipolar Transistors Feature Summary

• Low noise performance suitable for sensitive signal amplification
• High DC current gain ensuring effective signal control
• Complementary design compatibility within the BC546-BC550 series

Single Bipolar Transistors Applications

• General-purpose low-noise amplifier circuits
• Signal switching applications
• Audio pre-amplifier stages

Single Bipolar Transistors Procurement Notes

Verify the specific hFE binning code 'B' against the manufacturer datasheet to confirm the exact gain range required for your circuit design. Ensure the TO-92 package dimensions match your PCB footprint constraints. Confirm lead-free compliance status if environmental regulations apply to your manufacturing process.

Single Bipolar Transistors Selection Notes

Select this component when a standard NPN transistor with moderate voltage ratings and low noise characteristics is needed. Compare the 45V VCEO limit against your circuit's peak voltages. Consider the complementary BC560B PNP counterpart for push-pull configurations requiring matched performance characteristics.

Single Bipolar Transistors Part Context

The BC550B belongs to the BC546-BC550 family of NPN transistors manufactured by onsemi. This series is widely recognized for its reliability in general-purpose electronics. The 'B' suffix typically denotes a specific DC current gain grouping within the product line, distinguishing it from other gain variants like 'C' or 'A'.

Single Bipolar Transistors Replacement Considerations

Compatible substitutes include BC547B, BC548B, and BC549B, provided their respective voltage ratings meet the application requirements. Verify that any replacement maintains the same TO-92 pinout configuration.