BC51-10PA-QX

Single Bipolar Transistors Overview

The BC51-10PA-QX is a PNP medium power transistor from the Nexperia BC51PA-Q series, housed in an ultra-thin SOT1061 leadless SMD plastic package. It features a collector-emitter voltage (VCEO) of -45 V and a continuous collector current (IC) of -1 A. The device offers a DC current gain (hFE) range of 63 to 160 at VCE = -2 V and IC = -150 mA. It supports a peak collector current of -2 A for single pulses up to 1 ms. Total power dissipation reaches 1.65 W on an FR4 PCB with a 1 cm² collector pad. The transition frequency (fT) is typically 145 MHz.

Single Bipolar Transistors Feature Summary

• Qualified according to AEC-Q101 standards for automotive applications
• Exposed heatsink provides excellent thermal and electrical conductivity
• Leadless very small SMD plastic package with medium power capability
• Three current gain selections available within the series

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 suffix 'QX' against the official Nexperia ordering information table, as the datasheet lists 'BC51-10PA-Q' without specifying reel or tape variations. Confirm that the marking code corresponds to 'BQ' for this gain bin. Ensure the component meets the required AEC-Q101 qualification status for your target application environment.

Single Bipolar Transistors Selection Notes

Select this component when a compact, leadless package is required for high-current PNP switching or amplification. The BC51-10PA-Q variant is appropriate when a tighter DC current gain tolerance (63–160) is needed compared to the standard BC51PA-Q (63–250). Consider the exposed pad thermal performance if operating near maximum power dissipation limits.

Single Bipolar Transistors Part Context

This part belongs to the BC51PA-Q series of PNP medium power transistors designed for surface-mount technology. The series includes variants with different gain bins: BC51PA-Q, BC51-10PA-Q, and BC51-16PA-Q. All share the same SOT1061 package and electrical ratings but differ in hFE specifications. The series is engineered for automotive reliability and high thermal efficiency.

Single Bipolar Transistors Replacement Considerations

Direct substitutes within the same family include BC51PA-Q and BC51-16PA-Q, provided their respective gain ranges meet circuit requirements. Verify pinout compatibility (Base-Emitter-Collector) and package dimensions (SOT1061) before substitution.