2SA1723

Single Bipolar Transistors Overview

The onsemi 2SA1723 is a PNP silicon epitaxial planar transistor designed for general-purpose amplification and switching applications. It features a collector-emitter voltage rating of 50 V and a continuous collector current capacity of 0.5 A. The device utilizes a surface-mount SOT-89 (SC-62) package, providing efficient thermal dissipation with a maximum power dissipation of 1 W at 25°C ambient temperature. Key electrical characteristics include a DC current gain (hFE) ranging from 140 to 700 under specified test conditions, ensuring reliable performance in low-power circuit designs.

Single Bipolar Transistors Feature Summary

• PNP polarity configuration suitable for high-side switching and complementary NPN circuits
• Surface-mount SOT-89 packaging optimized for automated assembly and compact board layouts
• High DC current gain range supporting efficient signal amplification with minimal base drive

Single Bipolar Transistors Applications

• General-purpose amplifier stages in consumer electronics
• Low-power switching loads in industrial control systems
• Complementary output stages in audio and signal processing circuits

Single Bipolar Transistors Procurement Notes

Verify the specific suffix code against the official datasheet to confirm pinout orientation and thermal pad configuration. Ensure the component meets RoHS compliance requirements if mandated by the target application. Cross-reference the manufacturer's latest revision history to validate parameter consistency before finalizing the bill of materials.

Single Bipolar Transistors Selection Notes

Select this component when a PNP transistor with moderate current handling and high gain is required in a small surface-mount footprint. Compare the SOT-89 thermal resistance against available PCB copper area to ensure adequate heat dissipation. Consider the hFE spread when designing bias networks to maintain stable operation across different manufacturing batches.

Single Bipolar Transistors Part Context

This device belongs to the standard discrete semiconductor product line, specifically within the bipolar junction transistor category. It serves as a common replacement for legacy through-hole packages in modern miniaturized designs. The SOT-89 form factor bridges the gap between small signal transistors and higher power TO-220 devices.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include the 2SB1223 or equivalent PNP transistors in SOT-89 packages with matching 50V/0.5A ratings. Verify that alternative parts offer comparable hFE ranges and transition frequencies to maintain circuit stability without redesigning the bias network.