BC51PA,115

Single Bipolar Transistors Overview

The BC51PA,115 is a PNP medium power transistor manufactured by Nexperia. It operates with a maximum collector-emitter voltage of 45 V and supports a continuous collector current of 1 A. The device features a minimum DC current gain (hFE) ranging from 63 to 250 depending on the specific selection grade. Power dissipation is rated at 420 mW within an ultra-thin SOT-1061 leadless surface-mount package. It includes an exposed heatsink for thermal management and meets AEC-Q101 automotive qualification standards.

Single Bipolar Transistors Feature Summary

• High current capability with 1 A collector current rating
• Exposed heatsink design for enhanced thermal conductivity
• AEC-Q101 qualified for automotive reliability
• Ultra-thin leadless SMD plastic package

Single Bipolar Transistors Applications

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

Single Bipolar Transistors Procurement Notes

Verify the specific hFE binning code required for your application, as the part offers multiple gain selections. Confirm that the SOT-1061 package footprint matches your PCB layout constraints. Ensure the design accounts for the 420 mW power dissipation limit under expected operating conditions. Check for any recent production change notices regarding the leadless package or material composition.

Single Bipolar Transistors Selection Notes

Select this component when a compact PNP switch is needed for automotive or industrial applications requiring high current density. The exposed pad design is critical for thermal performance in space-constrained layouts. Compare against other SOT-1061 variants if different voltage ratings or gain profiles are necessary. Ensure the 45 V rating exceeds the maximum circuit voltage spikes.

Single Bipolar Transistors Part Context

This part belongs to Nexperia's BCP5x series of medium power transistors designed for surface-mount technology. The BC51PA variant specifically provides PNP polarity, distinguishing it from NPN counterparts like the BC54A. It is engineered to replace older through-hole packages while maintaining similar electrical characteristics in a significantly smaller form factor suitable for modern automated assembly.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include other Nexperia parts in the SOT-1061 package with matching 45V/1A ratings, such as the BC51P. Verify pinout compatibility and thermal resistance values before substitution. Cross-reference with equivalent parts from other manufacturers only if they explicitly meet the AEC-Q101 standard and identical electrical limits.