3STL2540

Single Bipolar Transistors Overview

The 3STL2540 is a PNP power transistor manufactured by STMicroelectronics using low voltage planar technology with a double metal process. It features a collector current rating of 5 A and a collector-emitter breakdown voltage of 40 V. The device is housed in a compact, leadless 3-PowerUDFN plastic package designed for surface mount applications. This component offers very low collector-emitter saturation voltage and high current gain characteristics, making it suitable for efficient switching and amplification tasks within small form factor designs.

Single Bipolar Transistors Feature Summary

• Very low collector-emitter saturation voltage
• High current gain characteristic
• Small, thin, leadless SMD plastic package with excellent thermal behavior

Single Bipolar Transistors Applications

Single Bipolar Transistors Procurement Notes

Verify the product status carefully before procurement as this specific part number is listed as obsolete in official distributor records. Confirm availability through authorized channels or check for direct replacements if active supply is required. Ensure that the 3-PowerUDFN package dimensions match your PCB footprint requirements. Cross-reference the datasheet specifications against your circuit design constraints to ensure compatibility with existing system architectures.

Single Bipolar Transistors Selection Notes

Select this component when a PNP configuration with 5 A continuous current capability and 40 V voltage rating is required. The choice is driven by the need for low saturation voltage and high current gain in space-constrained designs. Consider the thermal performance of the PowerUDFN package for heat dissipation needs. Evaluate the trade-off between the obsolete status and potential inventory availability against alternative active components.

Single Bipolar Transistors Part Context

This component belongs to the bipolar junction transistor (BJT) category from STMicroelectronics. It utilizes planar technology optimized for low voltage applications. The 3-PowerUDFN package represents a modern surface-mount solution aimed at improving thermal efficiency and reducing board space compared to traditional leaded packages. It serves as a discrete power device within broader semiconductor portfolios.

Single Bipolar Transistors Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Due to the obsolete status, users must identify equivalent PNP transistors with matching 5 A current, 40 V voltage, and compatible package footprints through independent engineering analysis.