2SA1339T-AC

Single Bipolar Transistors Overview

The onsemi 2SA1339T-AC is a PNP epitaxial planar silicon transistor designed for general-purpose switching applications. It features a maximum collector current of 0.5 A and a collector-emitter breakdown voltage of 50 V. The device operates with a minimum DC current gain (hFE) of 140 and supports a maximum junction temperature of 150 °C. Packaged in the SPA (Small Power Assembly) format, it utilizes a three-pin through-hole configuration suitable for board mounting.

Single Bipolar Transistors Feature Summary

• Utilizes PNP epitaxial planar silicon construction for reliable switching performance
• Engineered for high-speed operation with low saturation characteristics
• Designed for compact form factor integration via SPA package

Single Bipolar Transistors Applications

• General-purpose signal switching circuits
• Low-power relay driver stages
• Motor control interface modules

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'AC' against the official onsemi datasheet to confirm binning or grade specifications. Ensure the SPA package dimensions match the target PCB footprint. Confirm lead availability directly with authorized distributors as standard stock levels fluctuate. Validate that the 50V rating meets the circuit's peak voltage requirements under all operating conditions.

Single Bipolar Transistors Selection Notes

Select this component when a small-footprint PNP switch is required for currents up to 0.5 A. The SPA package offers a space-saving alternative to traditional TO-92 styles while maintaining robust thermal handling. Consider the 150 °C maximum junction temperature for environments requiring higher thermal tolerance than standard commercial grades provide.

Single Bipolar Transistors Part Context

This part belongs to onsemi's discrete bipolar transistor portfolio, specifically within the small-signal switching category. The SPA packaging technology allows for reduced board area consumption compared to conventional axial leads, making it suitable for modern consumer electronics and industrial control boards where space efficiency is critical.

Single Bipolar Transistors Replacement Considerations

Cross-reference with other SPA-packaged PNP transistors from onsemi or compatible manufacturers offering identical 50V/0.5A ratings. Verify pinout compatibility and hFE binning ranges before substitution to ensure circuit stability.