2SAR544R

Single Bipolar Transistors Overview

The Diotec Semiconductor 2SAR544R is a high-current PNP bipolar junction transistor (BJT) designed for surface-mount applications. It features an SOT-23 (TO-236) package and supports a continuous collector current of 2.5 A with a peak current of 5 A. The device provides a collector-emitter voltage rating of -80 V and a power dissipation capacity of up to 1000 mW on ceramic substrates. DC current gain ranges from 120 to 390, while the saturation voltage is approximately 0.2 V at 1 A. The transition frequency reaches 280 MHz, and it operates within a temperature range of -55°C to +150°C.

Single Bipolar Transistors Feature Summary

• High collector current capability of 2.5 A for robust load handling
• Low saturation voltage of approximately 0.2 V to minimize conduction losses
• Fast switching characteristics with a transit frequency of 280 MHz
• Compliant with RoHS, REACH, and Conflict Minerals regulations

Single Bipolar Transistors Applications

• High-speed switching circuits
• Driver circuits for loads requiring substantial current
• Commercial and industrial electronic systems

Single Bipolar Transistors Procurement Notes

Verify the specific suffix when ordering: standard versions are commercial/industrial grade, while suffixes -Q and -AQ denote AEC-Q101 compliance or qualification respectively. Confirm that the component matches the required automotive or standard reliability level before integration. Ensure the datasheet version aligns with the manufacturing batch specifications.

Single Bipolar Transistors Selection Notes

Select this component for designs requiring high current density in a compact SOT-23 footprint. Consider the thermal resistance of less than 250 K/W when designing PCB copper pads; use 3 mm² copper per terminal for optimal heat dissipation. Verify that the complementary NPN transistor 2SCR544R meets system symmetry requirements if used in push-pull configurations.

Single Bipolar Transistors Part Context

This part belongs to Diotec's SMD High Current PNP Transistor series. It serves as the PNP counterpart to the complementary NPN transistor 2SCR544R. The component is manufactured by Diotec Semiconductor AG and is available in taped and reeled packaging for automated assembly processes.

Single Bipolar Transistors Replacement Considerations

The complementary NPN transistor 2SCR544R is listed as the direct pair. No other public substitute part numbers are documented in the provided source material.