BC55PASX

Single Bipolar Transistors Overview

The BC55PASX is a single NPN medium power bipolar junction transistor (BJT) manufactured by Nexperia. It is housed in an ultra-thin DFN2020D-3 (SOT1061D) leadless surface-mount package with visible and solderable side pads. The device supports a maximum collector-emitter voltage of 45 V and a continuous collector current of 1 A. Key electrical characteristics include a gain-bandwidth product of 180 MHz, a DC current gain ranging from 63 to 250 at 150 mA, and a collector-emitter saturation voltage of 500 mV. It operates within a temperature range of -55 °C to +150 °C.

Single Bipolar Transistors Feature Summary

• Ultra-thin leadless SMD plastic package with exposed heat sink for enhanced thermal conductivity
• High collector current capability suitable for medium power applications
• Visible and solderable side pads facilitating Automatic Optical Inspection (AOI)
• Qualified to automotive reliability standards

Single Bipolar Transistors Applications

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

Single Bipolar Transistors Procurement Notes

Verify the specific suffix and packaging configuration against the official Nexperia datasheet to ensure compatibility with automated assembly processes. Confirm that the component meets the required AEC-Q101 qualification standards if intended for automotive use. Cross-reference the ordering code with the manufacturer's latest documentation to avoid discrepancies in package type or electrical specifications.

Single Bipolar Transistors Selection Notes

Select this component when a compact footprint and high thermal performance are required for NPN switching or amplification tasks. The DFN2020D-3 package offers a smaller area compared to conventional leaded packages while maintaining medium power dissipation capabilities. Ensure the application voltage does not exceed the 45 V rating and that the thermal design accounts for the exposed pad requirements.

Single Bipolar Transistors Part Context

This part belongs to the BC5xPA series of NPN/PNP medium power transistors designed for space-constrained applications. The series utilizes an ultra-thin leadless small Surface-Mounted Device plastic package. These transistors are engineered to reduce printed-circuit board area requirements while providing robust current handling and thermal management through their exposed heat sink design.

Single Bipolar Transistors Replacement Considerations

Compatible substitutes include BC54PASX (NPN 45V), BC56PASX (NPN 80V), and BC52PA (PNP 60V). Verify pinout compatibility and voltage ratings before substitution.