BC51PASX

Single Bipolar Transistors Overview

The BC51PASX is a PNP medium power bipolar junction transistor manufactured by Nexperia. It utilizes silicon technology and is housed in a DFN2020D-3 (SOT1061D) leadless surface-mount package with visible solderable side pads. The device supports a maximum collector current of 1 A and a collector-emitter voltage of 45 V. Key electrical parameters include a collector-base voltage of 45 V, an emitter-base voltage of 5 V, and a saturation voltage of 500 mV at specified currents. Power dissipation reaches 420 mW, with a transition frequency of 145 MHz. Operating temperatures range from -55 °C to +150 °C.

Single Bipolar Transistors Feature Summary

• High collector current capability for medium power applications
• Exposed heat sink design providing excellent thermal and electrical conductivity
• Leadless small SMD plastic package optimized for reduced PCB area requirements
• Suitable for Automatic Optical Inspection (AOI) of solder joints

Single Bipolar Transistors Applications

• Linear voltage regulators
• MOSFET drivers
• High-side switches
• Power management circuits

Single Bipolar Transistors Procurement Notes

Verify the specific suffix against official Nexperia documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and REACH registration details prior to integration. Ensure the ordering part number matches the required current gain selection variant. Cross-reference the 12NC code for accurate supply chain tracking and availability checks through authorized channels.

Single Bipolar Transistors Selection Notes

Select this component for designs requiring a compact PNP transistor with high current handling in a low-profile package. The exposed pad facilitates efficient heat dissipation for thermal management. Consider the 45 V rating for low-voltage switching applications. Verify that the DFN2020D-3 footprint aligns with existing board layouts and AOI inspection capabilities.

Single Bipolar Transistors Part Context

This part belongs to the BC51PAS series of PNP medium power transistors. It shares the same physical package and general feature set as complementary NPN variants within the family. The series is designed for applications demanding high performance in minimal space. It is distinct from higher-power packages like SOT89 used in other Nexperia lines.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include BC53PASX and BC54PASX for complementary polarity needs. Check datasheets for exact voltage and current ratings when substituting. Ensure pinout compatibility and thermal characteristics match the original design requirements.