2SA2126-TL-H

Single Bipolar Transistors Overview

The onsemi 2SA2126-TL-H is a PNP bipolar junction transistor (BJT) manufactured using silicon technology. It features a single configuration housed in a DPAK-3 or TO-252-3 surface-mount package with three pins. The device supports a maximum collector current of 3 A and a collector-emitter breakdown voltage of 50 V. Key electrical characteristics include a DC current gain (hFE) of at least 200 at 100 mA and 2 V, a transition frequency of 390 MHz, and a power dissipation rating of 800 mW. The component operates within a temperature range up to +150°C junction temperature.

Single Bipolar Transistors Feature Summary

• High-speed switching capability indicated by a 390 MHz transition frequency
• Robust current handling for a small-signal device with a 3 A continuous collector current rating
• Low saturation voltage for efficient power management in switching applications

Single Bipolar Transistors Applications

• General-purpose switching circuits
• Driver stages for power transistors
• Logic interface circuits requiring PNP output

Single Bipolar Transistors Procurement Notes

Verify the obsolete status of this component before design finalization. Confirm that the specific suffix TL-H matches the required tape-and-reel packaging format if automated assembly is planned. Ensure that the DPAK-3/TO-252-3 footprint aligns with existing PCB layouts. Check for RoHS compliance documentation as per regulatory requirements for the target market.

Single Bipolar Transistors Selection Notes

Select this part when a PNP transistor with moderate current capacity and high-speed performance is required in a surface-mount form factor. Compare the 50 V breakdown voltage against circuit peak voltages to ensure adequate margin. Evaluate the thermal resistance of the DPAK-3 package against the expected power dissipation of 800 mW to determine if heatsinking or copper area expansion is necessary for reliable operation.

Single Bipolar Transistors Part Context

This component belongs to the 2SA2126 series of PNP transistors from onsemi. It is designed for general-purpose amplification and switching tasks. The device utilizes standard silicon planar technology. It is distinct from the N-channel MOSFET ATP214-TL-H, which shares a similar suffix but differs fundamentally in technology and application.

Single Bipolar Transistors Replacement Considerations

• NJD1718T4G