BC556A,112

Single Bipolar Transistors Overview

The BC556A,112 is a PNP general-purpose silicon transistor manufactured by NXP Semiconductors. It is housed in a TO-92 (SOT54) plastic single-ended leaded package with three leads. The device supports a maximum collector-emitter voltage of 65 V and a continuous collector current of 100 mA. It features a DC current gain range of 125 to 250 at an IC of -2 mA and VCE of -5 V. Thermal resistance from junction to ambient is 250 K/W on an FR4 board.

Single Bipolar Transistors Feature Summary

• PNP bipolar junction transistor designed for low-current switching and amplification applications
• Housed in a standard TO-92 plastic through-hole package suitable for general-purpose circuit boards
• Provides high DC current gain within the specified operating temperature range

Single Bipolar Transistors Applications

• General purpose switching circuits
• Audio frequency amplification stages
• Low voltage signal processing

Single Bipolar Transistors Procurement Notes

Verify the specific ordering code BC556A,112 against the manufacturer's latest datasheet to confirm availability and compliance with current environmental standards. Ensure that the application requirements align with the absolute maximum ratings provided in the official documentation before finalizing procurement decisions.

Single Bipolar Transistors Selection Notes

Select this component when a PNP transistor with a minimum hFE of 125 is required for low-power applications. Compare its 65 V breakdown voltage against similar devices like the BC557 if higher voltage tolerance is needed. Confirm that the TO-92 package fits the mechanical constraints of the target design.

Single Bipolar Transistors Part Context

This part belongs to the BC556 series of PNP general-purpose transistors produced by NXP Semiconductors. It serves as a complement to the BC546 NPN transistor family. The 'A' suffix denotes a specific binning of the DC current gain characteristics compared to other variants in the same series.

Single Bipolar Transistors Replacement Considerations

BC556B,112 offers a higher minimum current gain but shares identical voltage and current ratings. BC557 provides similar functionality with a lower voltage rating of 45 V.