2SA2125-S-TD-H

Single Bipolar Transistors Overview

The onsemi 2SA2125-S-TD-H is a single PNP bipolar junction transistor (BJT) designed for surface-mount applications. It features a collector-emitter voltage rating of 50 V and a continuous collector current capacity of 3 A. The device offers a transition frequency of 390 MHz and a maximum power dissipation of 3.5 W. Packaged in the PCP (TO-243AA) format, it ensures reliable operation with a maximum junction temperature of 150°C.

Single Bipolar Transistors Feature Summary

• High-speed switching capability with a 390 MHz transition frequency
• Robust current handling with a 3 A continuous collector current rating
• Optimized low saturation voltage for efficient DC/DC converter performance

Single Bipolar Transistors Applications

• DC/DC converter circuits
• General-purpose switching applications
• Power management systems

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'S' against official documentation to confirm package or tape-and-reel specifications. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number with authorized distributor catalogs to validate availability and authenticity before procurement.

Single Bipolar Transistors Selection Notes

Select this component when a PNP BJT with 50 V breakdown and 3 A current capability is required in a surface-mount PCP package. Consider the 390 MHz transition frequency for high-frequency switching needs. Evaluate thermal management requirements given the 3.5 W power dissipation limit and 150°C junction temperature rating.

Single Bipolar Transistors Part Context

This part belongs to onsemi's lineup of single bipolar transistors, specifically optimized for power applications. The 2SA2125 series is often paired with complementary NPN devices like the 2SC5964 for push-pull configurations in power supply designs, providing matched electrical characteristics for balanced performance.

Single Bipolar Transistors Replacement Considerations

Consult official cross-reference guides for direct substitutes. Verify that any alternative maintains identical pinout, voltage ratings, and package dimensions to ensure compatibility without circuit redesign.