2STN2540-A

Single Bipolar Transistors Overview

The 2STN2540-A is a low voltage fast-switching PNP power bipolar transistor manufactured using PB-HCD technology. It features very low collector-emitter saturation voltage and high current gain. The device is housed in an SOT-223 surface-mount package. Absolute maximum ratings include a collector-emitter voltage of -40 V, a continuous collector current of -5 A, and a peak collector current of -10 A. Total dissipation is rated at 1.6 W at 25°C ambient temperature.

Single Bipolar Transistors Feature Summary

• Qualified for automotive applications
• Very low collector-emitter saturation voltage
• High current gain characteristic
• Fast switching speed

Single Bipolar Transistors Applications

• Emergency lighting
• LED drivers
• CCFL back lighting drivers
• Voltage regulation
• Relay driver

Single Bipolar Transistors Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm that the specific SOT-223 tape and reel packaging aligns with assembly requirements. Ensure design reviews account for the end-of-life status to mitigate long-term supply chain risks associated with discontinued semiconductor devices.

Single Bipolar Transistors Selection Notes

Select this component for designs requiring high-speed switching with minimal conduction loss in low-voltage environments. The PB-HCD technology provides superior performance compared to standard bipolar transistors. Verify thermal management capabilities against the specified junction-to-ambient resistance values during circuit layout.

Single Bipolar Transistors Part Context

This part belongs to STMicroelectronics' range of low voltage fast-switching PNP power bipolar transistors. It utilizes advanced Power Bipolar High Current Density technology to achieve exceptional gain and low saturation characteristics within a medium-power surface-mount form factor suitable for automated manufacturing processes.

Single Bipolar Transistors Replacement Considerations

Check official ST documentation for direct cross-reference substitutes. Evaluate alternative PNP transistors with matching -40V VCEO and -5A IC ratings if sourcing new production units is not feasible due to the obsolete classification.