BC 817-25 B5003

Single Bipolar Transistors Overview

The BC817-25 B5003 is an NPN general-purpose bipolar junction transistor manufactured by Infineon Technologies. It is housed in a SOT-23 surface-mount package and supports a maximum collector current of 500 mA with a collector-emitter voltage rating of 45 V. The device features a DC current gain (hFE) range of 160 to 400 and a transition frequency of 170 MHz. Key electrical limits include a maximum power dissipation of 330 mW, a collector-base voltage of 50 V, and a collector-emitter saturation voltage of 0.7 V.

Single Bipolar Transistors Feature Summary

• Provides high current handling capability suitable for switching applications
• Offers three standardized current gain selections for consistent performance
• Utilizes a compact surface-mount plastic package for automated assembly

Single Bipolar Transistors Applications

• General-purpose switching circuits
• Linear amplification stages
• Driver circuits for low-power loads

Single Bipolar Transistors Procurement Notes

Verify the specific manufacturer origin, as the BC817-25 designation is widely used by multiple semiconductor vendors including Nexperia and STMicroelectronics. Confirm that the B5003 suffix corresponds to the intended packaging or binning configuration required for your design. Ensure compatibility with the specific datasheet parameters provided by the actual supplier rather than assuming cross-manufacturer equivalence without documentation.

Single Bipolar Transistors Selection Notes

Select this component when a small SMD NPN transistor with moderate current capacity is required. The 45 V breakdown voltage and 500 mA continuous current rating make it suitable for standard logic-level interfacing and signal processing tasks. Consider the thermal management requirements given the 330 mW power dissipation limit in the specified package.

Single Bipolar Transistors Part Context

This part belongs to the BC817 family of general-purpose NPN transistors. These devices are commonly used in consumer electronics and industrial control systems where reliable switching and amplification are needed. The BC817-25 variant specifically denotes a defined hFE range, ensuring predictable gain characteristics across production batches compared to unsorted variants.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include the BC817-25 from Nexperia and STMicroelectronics, which share identical pinouts and electrical specifications. Verify package compatibility and ensure the replacement source provides official datasheets confirming the 160-400 hFE range and 45 V VCEO rating.