QS6Z5TR

Overview

The QS6Z5TR is a dual bipolar junction transistor (BJT) manufactured by ROHM Semiconductor, featuring an integrated NPN and PNP configuration within a single SOT-457T-6 surface-mount package. It operates with a maximum collector-emitter voltage of 50 V and supports a continuous collector current of 1 A. The device exhibits a power dissipation rating of 1.25 W and a DC current gain ranging from 180 to 450 at 50 mA. Its transition frequency reaches up to 400 MHz, while saturation voltages are specified at 350 mV for the NPN and 400 mV for the PNP element. The component functions reliably across a temperature range extending to +150°C.

Feature Summary

• Integrated dual NPN/PNP structure in a compact SMD footprint
• High current handling capability with 1 A continuous collector current
• Wide operating temperature range suitable for demanding environments

Applications

• General-purpose switching circuits
• Driver stages for low-power loads
• Logic interface applications requiring complementary transistor pairs

Procurement Notes

Verify the specific ordering suffix against official ROHM documentation to confirm tape-and-reel packaging quantities. Ensure the part number matches the exact electrical specifications required for the design. Cross-reference the manufacturer's datasheet for any updates on RoHS compliance status or recommended soldering profiles prior to final procurement decisions.

Selection Notes

Select this component when a matched NPN/PNP pair is required in a minimal footprint. The 50 V rating and 1 A current capacity suit moderate power switching tasks. Consider the 1.25 W power dissipation limit and thermal management requirements for the SOT-457 package. Verify that the 350/400 mV saturation voltages meet the efficiency targets of the target circuit application.

Part Context

This part belongs to ROHM's general-purpose BJT portfolio, designed for space-constrained PCB layouts. The SOT-457 package allows for high-density mounting compared to discrete individual transistors. It serves as a standard solution for applications needing complementary switching elements without occupying separate board areas for each transistor type.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult the official ROHM datasheet for direct replacements or similar specification alternatives.