2STA2120

Single Bipolar Transistors Overview

The 2STA2120 is a high-power PNP epitaxial planar bipolar transistor manufactured using BiT-LA technology. It features a collector-emitter voltage of -250 V and a continuous collector current of -17 A. The device provides a typical transition frequency of 25 MHz and supports a total dissipation of 200 W at 25 °C case temperature. It operates with a maximum junction temperature of 150 °C and includes an identification marking of '2ST A2120'.

Single Bipolar Transistors Feature Summary

• High breakdown voltage capability of -250 V for robust operation.
• BiT-LA technology ensures good gain linearity behavior.
• Fully characterized performance data available up to 125 °C.

Single Bipolar Transistors Applications

• Audio power amplifier circuits

Single Bipolar Transistors Procurement Notes

Verify the obsolete status before procurement planning, as this component is no longer active in the STMicroelectronics portfolio. Confirm that the TO-3P tube packaging aligns with assembly requirements. Ensure design-in decisions account for the discontinuation timeline and potential supply constraints associated with end-of-life products.

Single Bipolar Transistors Selection Notes

Select this component when a high-voltage PNP transistor with specific linear amplification characteristics is required. The complementary NPN counterpart is the 2STC5948. Consider the thermal resistance of 0.625 °C/W for heat sink design. Evaluate the -17 A continuous current rating against peak load demands to ensure safe operating area compliance.

Single Bipolar Transistors Part Context

This device belongs to the family of high-power PNP epitaxial planar bipolar transistors designed for linear amplifier applications. It utilizes BiT-LA technology to achieve superior gain linearity compared to standard bipolar processes. The product is housed in a TO-3P package, suitable for high-power thermal management scenarios.

Single Bipolar Transistors Replacement Considerations

The datasheet identifies the 2STC5948 as the complementary NPN device. No other direct substitute part numbers are documented in the provided source material.

Single Bipolar Transistors FAQ

What is the typical transition frequency of the 2STA2120?

The typical transition frequency (fT) is 25 MHz, measured at IC = -1 A and VCE = -5 V.

Is the 2STA2120 compatible with the 2STC5948?

Yes, the 2STA2120 is explicitly described as complementary to the 2STC5948 NPN transistor.

What is the maximum total power dissipation?

The total dissipation is rated at 200 W when the case temperature is maintained at 25 °C.