2SA2039-E

Single Bipolar Transistors Overview

The onsemi 2SA2039-E is a single PNP bipolar junction transistor (BJT) designed for high-speed switching applications. It features a maximum collector current of 5 A and a collector-emitter voltage rating of -50 V. The device utilizes FBET and MBIT processes to achieve low collector-to-emitter saturation voltage and large current capacitance. Key electrical parameters include a minimum DC current gain (hFE) of 200, a transition frequency (fT) of 360 MHz, and a maximum power dissipation of 800 mW in the TO-251-3 package. The component supports a maximum operating temperature of +150°C.

Single Bipolar Transistors Feature Summary

• Adoption of FBET and MBIT processes for enhanced performance
• Low collector-to-emitter saturation voltage for efficiency
• High-speed switching capability with large current capacitance

Single Bipolar Transistors Applications

• DC/DC converters
• Relay drivers
• Lamp drivers
• Motor drivers

Single Bipolar Transistors Procurement Notes

Verify end-of-life status before design finalization. The manufacturer has issued discontinuance notifications indicating the product will be phased out. Confirm specific ordering suffixes match required packaging and compliance standards. Review official PCN documents for wafer fab transfer details to ensure supply chain continuity during the transition period.

Single Bipolar Transistors Selection Notes

Select this component for circuits requiring robust PNP switching with moderate current handling. The TO-251-3 package offers a balance between thermal performance and board space. Ensure the application voltage does not exceed the 50 V rating. Consider the 800 mW power dissipation limit when designing heat management strategies for continuous operation.

Single Bipolar Transistors Part Context

This part belongs to the 2SA2039 series, which includes complementary NPN counterparts like the 2SC5706. The series is engineered for general-purpose power switching where speed and saturation voltage are critical. It serves as a silicon-based alternative to older technologies in industrial and consumer electronics designs.

Single Bipolar Transistors Replacement Considerations

Check for direct pin-compatible substitutes within the same family or updated revisions. Verify that any replacement maintains the 5A current and 50V voltage ratings. Ensure the new component matches the TO-251-3 footprint if surface mount installation is required.