2SAR544RTL

Single Bipolar Transistors Overview

The 2SAR544RTL is a PNP bipolar junction transistor manufactured by ROHM Semiconductor, designed for driver applications. It operates with a collector-emitter voltage of -80 V and supports a continuous collector current of -2.5 A. The device features a DC current gain (hFE) ranging from 120 to 390 at -100 mA and -3 V. It has a power dissipation rating of 1 W and a transition frequency of 280 MHz. The component is housed in an SOT-346T-3 surface-mount package and complies with the AEC-Q101 automotive standard.

Single Bipolar Transistors Feature Summary

• Integrated digital driver configuration optimized for switching efficiency
• Automotive-grade reliability certified under AEC-Q101 standards
• Low saturation voltage characteristics for reduced power loss
• High current handling capability within a compact surface-mount footprint

Single Bipolar Transistors Applications

• Automotive electronic control unit output stages
• Power management circuit load switches
• Digital logic interface drivers
• Motor control pre-driver circuits

Single Bipolar Transistors Procurement Notes

Verify the specific suffix RTL against the official ROHM datasheet to confirm the exact tape-and-reel packaging quantity and moisture sensitivity level. Ensure the procurement source provides valid traceability documentation required for AEC-Q101 qualified components. Cross-reference the manufacturer part number directly with the latest product notification to avoid obsolete stock or discontinued variants.

Single Bipolar Transistors Selection Notes

Select this component when a PNP driver transistor with automotive qualification is required for high-current switching applications. The -80 V rating suits medium-voltage systems, while the 1 W dissipation allows for moderate thermal loads without external heatsinks in many designs. Compare the hFE range and saturation voltage against alternative SOT-346T packages to ensure compatibility with existing drive circuitry constraints.

Single Bipolar Transistors Part Context

This part belongs to the 2SAR series of PNP transistors from ROHM, specifically engineered for digital driver functions. It complements the NPN 2SCR544 counterpart within the same family, offering matched electrical characteristics for push-pull configurations. The series is widely utilized in automotive electronics due to its robustness and compliance with stringent industry reliability standards.

Single Bipolar Transistors Replacement Considerations

The 2SAR544PHZG is a documented replacement option with identical pinout and package specifications. Verify that the PHZG variant meets the same AEC-Q101 requirements if automotive qualification is mandatory for the application.